200-901 Network Fundamentals — All Questions With Answers

In the OSI model, which layer is responsible for logical addressing and routing of packets between networks?

Question 2easymultiple choice

Which transport protocol is connection-oriented and ensures reliable delivery through acknowledgments and retransmissions?

Question 3mediummultiple choice

A DNS AAAA record is used to resolve a hostname to what type of address?

Question 4mediummultiple choice

A network engineer is designing a subnet that needs to support 30 usable hosts. Which subnet mask should be used?

Question 5mediummultiple choice

Which HTTP method is idempotent and used to update a resource by sending the full representation?

Question 6mediummultiple choice

In the context of SDN, which API is used between the SDN controller and the network devices to configure forwarding behavior?

Question 7hardmultiple choice

A network administrator is configuring a wireless network and wants to minimize interference. In the 2.4 GHz band, which set of channels are non-overlapping?

Question 8hardmultiple choice

During a TCP three-way handshake, which sequence of flags is sent from the client to initiate the connection?

Question 9easymultiple choice

Study the full Python automation breakdown →

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 10mediummultiple choice

A developer is writing a Python script to interact with a REST API. The API requires a JSON payload to create a new resource. Which HTTP method should be used?

Question 11hardmultiple choice

Which DNS record type is used to verify domain ownership for email security protocols like SPF and DKIM?

Question 12easymultiple choice

Which layer of the OSI model uses MAC addresses to deliver frames within the same network segment?

Question 13mediummulti select

Which TWO of the following are characteristics of UDP compared to TCP? (Select two.)

Question 14hardmulti select

Which THREE of the following are true about HTTP/2 compared to HTTP/1.1? (Select three.)

Question 15mediummulti select

Which TWO of the following are valid private IPv4 address ranges? (Select two.)

Question 16mediummultiple choice

An engineer is troubleshooting a connectivity issue between two devices on different VLANs. The switch connecting the devices is configured with 802.1Q trunking. At which OSI layer do VLANs operate?

Question 17mediummultiple choice

A network application requires reliable, ordered delivery of data and uses a three-way handshake to establish a connection. Which transport protocol is being used?

Question 18easymultiple choice

A network administrator needs to assign IP addresses to devices on a subnet with a /25 prefix. How many usable host addresses are available?

Question 19hardmultiple choice

A developer is building a real-time video streaming application that must minimize delay, even if some packets are lost. Which transport protocol is most appropriate, and why?

Question 20easymultiple choice

Which DNS record type is used to map a domain name to an IPv6 address?

Question 21mediummultiple choice

An organization has a web server that needs to be reachable via both 'www.example.com' and 'example.com'. Which DNS record type should be used to make 'example.com' an alias for 'www.example.com'?

Question 22mediummultiple choice

In HTTP/2, which feature allows multiple concurrent requests and responses to be interleaved on a single connection, improving performance?

Question 23hardmultiple choice

A network engineer is configuring a wireless network for a hospital that requires high throughput and minimal interference from neighboring networks. Which set of 2.4 GHz channels should be used for non-overlapping coverage?

Question 24easymultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 25mediummultiple choice

An application needs to discover the MAC address of another device on the same local network. Which protocol does it use?

Question 26mediummultiple choice

In Software-Defined Networking (SDN), which interface is used for communication between the controller and the network devices (e.g., switches) to forward traffic?

Question 27hardmultiple choice

A network administrator notices that a host with IP 192.168.1.10/25 cannot communicate with a host at 192.168.1.200/25. What is the most likely reason?

Question 28mediummulti select

Which TWO of the following are characteristics of TLS (Transport Layer Security) used in HTTPS? (Choose two.)

Question 29hardmulti select

Which THREE of the following are benefits of using an SDN (Software-Defined Networking) architecture compared to traditional networking? (Choose three.)

Question 30easymulti select

Which TWO of the following protocols use UDP as the transport layer protocol? (Choose two.)

Question 31easymultiple choice

A network engineer is troubleshooting connectivity issues and wants to verify the path that packets take from a source to a destination IP address. Which OSI layer is primarily responsible for packet forwarding and routing?

Question 32mediummultiple choice

An application requires reliable, ordered delivery of data with flow control and retransmission of lost segments. Which transport layer protocol should the developer choose and what is a key characteristic of this protocol?

Question 33mediummultiple choice

A network administrator is configuring subnetting for a new branch office that requires 50 usable host addresses per subnet. The available network is 192.168.10.0/24. What subnet mask should be used to meet the requirement with minimal waste?

Question 34hardmultiple choice

A developer is designing a microservices architecture where services need to discover each other using DNS. The team wants to map a service name 'payment-service.example.com' to its IPv6 address. Which DNS record type should be used?

Question 35easymultiple choice

A web application uses HTTPS to secure communications between client and server. What does HTTPS add on top of HTTP to provide encryption and authentication?

Question 36mediummultiple choice

A network engineer is configuring a wireless network for a new office. To maximize performance and minimize interference, the engineer decides to use the 5 GHz band. Which of the following is a key advantage of 5 GHz over 2.4 GHz?

Question 37hardmultiple choice

In Software-Defined Networking (SDN), the control plane is separated from the data plane. Which of the following best describes the function of the southbound API?

Question 38mediummultiple choice

A developer is troubleshooting an HTTP API call that returns a 404 status code. Which of the following is the most likely cause?

Question 39easymultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 40mediummultiple choice

A network administrator is configuring DNS for a corporate domain. An MX record is required to specify the mail server responsible for handling email. Which of the following is a correct example of an MX record?

Question 41hardmultiple choice

A network engineer is tasked with segmenting a large broadcast domain into smaller ones using VLANs. In the OSI model, at which layer does a VLAN operate?

Question 42easymultiple choice

An application developer is using a protocol that does not require a connection setup and has minimal header overhead. Which transport protocol is being used?

Question 43mediummulti select

A network administrator is deploying a wireless network that supports the latest security standards and high throughput. Which TWO of the following are true regarding Wi-Fi 6 (802.11ax) compared to Wi-Fi 5 (802.11ac)?

Question 44hardmulti select

A DevOps engineer is automating network configuration using REST APIs. The engineer needs to choose between NETCONF and OpenFlow as southbound protocols. Which TWO statements are correct?

Question 45mediummulti select

A developer is designing a system that requires high reliability and ordered data delivery. The developer chooses TCP. Which THREE features are provided by TCP?

Question 46easymultiple choice

Which OSI layer is responsible for routing packets across different networks?

Question 47mediummultiple choice

A network administrator configures a switch port to belong to VLAN 10. Which OSI layer is primarily involved in VLAN tagging?

Question 48mediummultiple choice

An application requires reliable, ordered delivery of data. Which transport protocol should be used?

Question 49mediummultiple choice

Which TCP flag is set in the second step of the three-way handshake?

Question 50easymultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 51hardmultiple choice

A network engineer is subnetting the network 192.168.1.0/24 into subnets that each support at least 50 hosts. What subnet mask should be used?

Question 52mediummultiple choice

Which DNS record type is used to verify domain ownership for email security (SPF)?

Question 53easymultiple choice

What is the primary benefit of using HTTP/2 over HTTP/1.1?

Question 54hardmultiple choice

In the context of SDN, which API allows a network controller to communicate with the forwarding plane of network devices?

Question 55mediummultiple choice

Which wireless standard operates in both 2.4 GHz and 5 GHz bands and is commonly known as Wi-Fi 6?

Question 56hardmultiple choice

An engineer sees that a DNS query for 'www.example.com' returns a CNAME record. What does this mean?

Question 57mediummultiple choice

An application uses UDP. Which characteristic is true about this application's communication?

Question 58easymultiple choice

Which of the following is a non-overlapping channel in the 2.4 GHz Wi-Fi band?

Question 59mediummulti select

Which TWO of the following are southbound protocols in SDN?

Question 60hardmulti select

Which THREE of the following are features of HTTP/2?

Question 61easymultiple choice

At which layer of the OSI model do MAC addresses operate?

Question 62easymultiple choice

Which transport layer protocol is used by HTTP and guarantees reliable delivery?

Question 63mediummultiple choice

A network administrator is configuring a new subnet for a branch office that requires at least 50 usable host addresses. Which subnet mask would meet this requirement while minimizing address waste?

Question 64mediummultiple choice

In the TCP three-way handshake, which sequence of flags is exchanged to establish a connection?

Question 65mediummultiple choice

Which DNS record type is used to map a domain name to an IPv6 address?

Question 66mediummultiple choice

An engineer is troubleshooting a VoIP call quality issue. The call uses UDP and experiences packet loss. Which characteristic of UDP most likely contributes to the problem?

Question 67mediummultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 68hardmultiple choice

In an SDN architecture, which API is used by the controller to communicate with network devices to install forwarding rules?

Question 69hardmultiple choice

An HTTP/2 connection uses multiple concurrent streams over a single TCP connection. Which feature of HTTP/2 enables this?

Question 70hardmultiple choice

In a wireless network using 802.11ac, which frequency band does the standard primarily operate in to achieve higher throughput?

Question 71easymultiple choice

What is the primary function of a switch in a network?

Question 72mediummultiple choice

A developer is writing a script that uses a REST API to configure network devices via NETCONF. Which layer of the SDN architecture does NETCONF belong to?

Question 73hardmultiple choice

Which wireless security standard provides the strongest encryption and is recommended for enterprise networks as of 2023?

Question 74mediummulti select

Which TWO of the following are benefits of using UDP over TCP for real-time applications?

Question 75hardmulti select

Which THREE of the following are characteristics of HTTP/2 compared to HTTP/1.1?

Question 76easymultiple choice

At which layer of the OSI model do switches operate when forwarding frames based on MAC addresses?

Question 77mediummultiple choice

An application requires reliable, ordered delivery of data with error checking. Which transport protocol should be used, and what is a key characteristic of this protocol?

Question 78mediummultiple choice

Which IP address is a valid host address in the 192.168.1.0/24 network?

Question 79hardmultiple choice

A network engineer is designing a subnetting scheme for a company that requires 5 subnets from the 192.168.1.0/24 network. What subnet mask should be used, and how many usable hosts per subnet will be available?

Question 80mediummultiple choice

Which DNS record type is used to verify domain ownership for email security (SPF) and is stored as a text string?

Question 81easymultiple choice

Which wireless standard is commonly known as Wi-Fi 6 and operates in both 2.4 GHz and 5 GHz bands?

Question 82mediummultiple choice

In an SDN architecture, which layer is responsible for making decisions about where traffic should be forwarded?

Question 83hardmultiple choice

A network engineer configures an HTTP/2 server. Which feature of HTTP/2 reduces overhead by compressing headers using HPACK?

Question 84easymultiple choice

Which non-overlapping channels are available in the 2.4 GHz band for Wi-Fi to minimize interference?

Question 85mediummultiple choice

A developer is creating a REST API client that needs to authenticate using credentials passed in the HTTP header. Which header should be used?

Question 86mediummultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 87hardmultiple choice

In the OSI model, which layer is responsible for session management, including establishing, maintaining, and terminating connections between applications?

Question 88mediummulti select

A network administrator is configuring a DNS server. Which TWO DNS record types are used for IPv6 address resolution?

Question 89mediummulti select

Which THREE of the following are characteristics of the UDP protocol?

Question 90hardmulti select

An engineer is troubleshooting a network issue where a client cannot reach a server. The client uses HTTPS. Which TWO factors are essential for a successful TLS handshake?

Question 91easymultiple choice

An engineer is troubleshooting a network issue and needs to verify the MAC address of the next-hop router on a directly connected segment. Which layer of the OSI model does the engineer need to examine to find this information?

Question 92mediummultiple choice

A network administrator is configuring a new subnet for a branch office that requires 50 usable host addresses. The corporate network uses the 192.168.10.0/24 block. Which subnet mask should be used to meet the requirement with minimal waste?

Question 93easymulti select

A DevOps team is deploying a microservices application that requires both reliable data transfer and low-latency real-time communication. Which two protocols should be used for these respective requirements? (Choose two.)

Question 94mediummulti select

An administrator is configuring DNS records for a company's domain. Which three DNS record types are most commonly used to map hostnames to IP addresses or aliases? (Choose three.)

Question 95mediummulti select

A network engineer is designing a wireless network for an office that requires high throughput and minimal interference. Which two channels should be used for the 2.4 GHz band to avoid overlap? (Choose two.)

Question 96mediummulti select

A software-defined networking (SDN) controller is being deployed to manage network devices. Which two components are part of the SDN architecture? (Choose two.)

Question 97hardmulti select

An organization is planning to implement HTTPS for their web services. Which three statements accurately describe the HTTPS protocol? (Choose three.)

Question 98hardmulti select

A network engineer is analyzing traffic and needs to identify which applications use UDP. Which three applications commonly use UDP as their transport protocol? (Choose three.)

Question 99hardmulti select

An engineer is configuring a new IPv4 subnet with the address 172.16.5.0/25. Which three statements are true about this subnet? (Choose three.)

Question 1easymultiple choice

In the OSI model, which layer is responsible for logical addressing and routing of packets between networks?

Question 2easymultiple choice

Which transport protocol is connection-oriented and ensures reliable delivery through acknowledgments and retransmissions?

Question 3mediummultiple choice

A DNS AAAA record is used to resolve a hostname to what type of address?

Question 4mediummultiple choice

A network engineer is designing a subnet that needs to support 30 usable hosts. Which subnet mask should be used?

Question 5mediummultiple choice

Which HTTP method is idempotent and used to update a resource by sending the full representation?

Question 6mediummultiple choice

In the context of SDN, which API is used between the SDN controller and the network devices to configure forwarding behavior?

Question 7hardmultiple choice

A network administrator is configuring a wireless network and wants to minimize interference. In the 2.4 GHz band, which set of channels are non-overlapping?

Question 8hardmultiple choice

During a TCP three-way handshake, which sequence of flags is sent from the client to initiate the connection?

Question 9easymultiple choice

Study the full Python automation breakdown →

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 10mediummultiple choice

A developer is writing a Python script to interact with a REST API. The API requires a JSON payload to create a new resource. Which HTTP method should be used?

Question 11hardmultiple choice

Which DNS record type is used to verify domain ownership for email security protocols like SPF and DKIM?

Question 12easymultiple choice

Which layer of the OSI model uses MAC addresses to deliver frames within the same network segment?

Question 13mediummulti select

Which TWO of the following are characteristics of UDP compared to TCP? (Select two.)

Question 14hardmulti select

Which THREE of the following are true about HTTP/2 compared to HTTP/1.1? (Select three.)

Question 15mediummulti select

Which TWO of the following are valid private IPv4 address ranges? (Select two.)

Question 16mediummultiple choice

An engineer is troubleshooting a connectivity issue between two devices on different VLANs. The switch connecting the devices is configured with 802.1Q trunking. At which OSI layer do VLANs operate?

Question 17mediummultiple choice

A network application requires reliable, ordered delivery of data and uses a three-way handshake to establish a connection. Which transport protocol is being used?

Question 18easymultiple choice

A network administrator needs to assign IP addresses to devices on a subnet with a /25 prefix. How many usable host addresses are available?

Question 19hardmultiple choice

A developer is building a real-time video streaming application that must minimize delay, even if some packets are lost. Which transport protocol is most appropriate, and why?

Question 20easymultiple choice

Which DNS record type is used to map a domain name to an IPv6 address?

Question 21mediummultiple choice

An organization has a web server that needs to be reachable via both 'www.example.com' and 'example.com'. Which DNS record type should be used to make 'example.com' an alias for 'www.example.com'?

Question 22mediummultiple choice

In HTTP/2, which feature allows multiple concurrent requests and responses to be interleaved on a single connection, improving performance?

Question 23hardmultiple choice

A network engineer is configuring a wireless network for a hospital that requires high throughput and minimal interference from neighboring networks. Which set of 2.4 GHz channels should be used for non-overlapping coverage?

Question 24easymultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 25mediummultiple choice

An application needs to discover the MAC address of another device on the same local network. Which protocol does it use?

Question 26mediummultiple choice

In Software-Defined Networking (SDN), which interface is used for communication between the controller and the network devices (e.g., switches) to forward traffic?

Question 27hardmultiple choice

A network administrator notices that a host with IP 192.168.1.10/25 cannot communicate with a host at 192.168.1.200/25. What is the most likely reason?

Question 28mediummulti select

Which TWO of the following are characteristics of TLS (Transport Layer Security) used in HTTPS? (Choose two.)

Question 29hardmulti select

Which THREE of the following are benefits of using an SDN (Software-Defined Networking) architecture compared to traditional networking? (Choose three.)

Question 30easymulti select

Which TWO of the following protocols use UDP as the transport layer protocol? (Choose two.)

Question 31easymultiple choice

A network engineer is troubleshooting connectivity issues and wants to verify the path that packets take from a source to a destination IP address. Which OSI layer is primarily responsible for packet forwarding and routing?

Question 32mediummultiple choice

An application requires reliable, ordered delivery of data with flow control and retransmission of lost segments. Which transport layer protocol should the developer choose and what is a key characteristic of this protocol?

Question 33mediummultiple choice

A network administrator is configuring subnetting for a new branch office that requires 50 usable host addresses per subnet. The available network is 192.168.10.0/24. What subnet mask should be used to meet the requirement with minimal waste?

Question 34hardmultiple choice

A developer is designing a microservices architecture where services need to discover each other using DNS. The team wants to map a service name 'payment-service.example.com' to its IPv6 address. Which DNS record type should be used?

Question 35easymultiple choice

A web application uses HTTPS to secure communications between client and server. What does HTTPS add on top of HTTP to provide encryption and authentication?

Question 36mediummultiple choice

A network engineer is configuring a wireless network for a new office. To maximize performance and minimize interference, the engineer decides to use the 5 GHz band. Which of the following is a key advantage of 5 GHz over 2.4 GHz?

Question 37hardmultiple choice

In Software-Defined Networking (SDN), the control plane is separated from the data plane. Which of the following best describes the function of the southbound API?

Question 38mediummultiple choice

A developer is troubleshooting an HTTP API call that returns a 404 status code. Which of the following is the most likely cause?

Question 39easymultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 40mediummultiple choice

A network administrator is configuring DNS for a corporate domain. An MX record is required to specify the mail server responsible for handling email. Which of the following is a correct example of an MX record?

Question 41hardmultiple choice

A network engineer is tasked with segmenting a large broadcast domain into smaller ones using VLANs. In the OSI model, at which layer does a VLAN operate?

Question 42easymultiple choice

An application developer is using a protocol that does not require a connection setup and has minimal header overhead. Which transport protocol is being used?

Question 43mediummulti select

A network administrator is deploying a wireless network that supports the latest security standards and high throughput. Which TWO of the following are true regarding Wi-Fi 6 (802.11ax) compared to Wi-Fi 5 (802.11ac)?

Question 44hardmulti select

A DevOps engineer is automating network configuration using REST APIs. The engineer needs to choose between NETCONF and OpenFlow as southbound protocols. Which TWO statements are correct?

Question 45mediummulti select

A developer is designing a system that requires high reliability and ordered data delivery. The developer chooses TCP. Which THREE features are provided by TCP?

Question 46easymultiple choice

Which OSI layer is responsible for routing packets across different networks?

Question 47mediummultiple choice

A network administrator configures a switch port to belong to VLAN 10. Which OSI layer is primarily involved in VLAN tagging?

Question 48mediummultiple choice

An application requires reliable, ordered delivery of data. Which transport protocol should be used?

Question 49mediummultiple choice

Which TCP flag is set in the second step of the three-way handshake?

Question 50easymultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 51hardmultiple choice

A network engineer is subnetting the network 192.168.1.0/24 into subnets that each support at least 50 hosts. What subnet mask should be used?

Question 52mediummultiple choice

Which DNS record type is used to verify domain ownership for email security (SPF)?

Question 53easymultiple choice

What is the primary benefit of using HTTP/2 over HTTP/1.1?

Question 54hardmultiple choice

In the context of SDN, which API allows a network controller to communicate with the forwarding plane of network devices?

Question 55mediummultiple choice

Which wireless standard operates in both 2.4 GHz and 5 GHz bands and is commonly known as Wi-Fi 6?

Question 56hardmultiple choice

An engineer sees that a DNS query for 'www.example.com' returns a CNAME record. What does this mean?

Question 57mediummultiple choice

An application uses UDP. Which characteristic is true about this application's communication?

Question 58easymultiple choice

Which of the following is a non-overlapping channel in the 2.4 GHz Wi-Fi band?

Question 59mediummulti select

Which TWO of the following are southbound protocols in SDN?

Question 60hardmulti select

Which THREE of the following are features of HTTP/2?

Question 61easymultiple choice

At which layer of the OSI model do MAC addresses operate?

Question 62easymultiple choice

Which transport layer protocol is used by HTTP and guarantees reliable delivery?

Question 63mediummultiple choice

A network administrator is configuring a new subnet for a branch office that requires at least 50 usable host addresses. Which subnet mask would meet this requirement while minimizing address waste?

Question 64mediummultiple choice

In the TCP three-way handshake, which sequence of flags is exchanged to establish a connection?

Question 65mediummultiple choice

Which DNS record type is used to map a domain name to an IPv6 address?

Question 66mediummultiple choice

An engineer is troubleshooting a VoIP call quality issue. The call uses UDP and experiences packet loss. Which characteristic of UDP most likely contributes to the problem?

Question 67mediummultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 68hardmultiple choice

In an SDN architecture, which API is used by the controller to communicate with network devices to install forwarding rules?

Question 69hardmultiple choice

An HTTP/2 connection uses multiple concurrent streams over a single TCP connection. Which feature of HTTP/2 enables this?

Question 70hardmultiple choice

In a wireless network using 802.11ac, which frequency band does the standard primarily operate in to achieve higher throughput?

Question 71easymultiple choice

What is the primary function of a switch in a network?

Question 72mediummultiple choice

A developer is writing a script that uses a REST API to configure network devices via NETCONF. Which layer of the SDN architecture does NETCONF belong to?

Question 73hardmultiple choice

Which wireless security standard provides the strongest encryption and is recommended for enterprise networks as of 2023?

Question 74mediummulti select

Which TWO of the following are benefits of using UDP over TCP for real-time applications?

Question 75hardmulti select

Which THREE of the following are characteristics of HTTP/2 compared to HTTP/1.1?

Question 76easymultiple choice

At which layer of the OSI model do switches operate when forwarding frames based on MAC addresses?

Question 77mediummultiple choice

An application requires reliable, ordered delivery of data with error checking. Which transport protocol should be used, and what is a key characteristic of this protocol?

Question 78mediummultiple choice

Which IP address is a valid host address in the 192.168.1.0/24 network?

Question 79hardmultiple choice

A network engineer is designing a subnetting scheme for a company that requires 5 subnets from the 192.168.1.0/24 network. What subnet mask should be used, and how many usable hosts per subnet will be available?

Question 80mediummultiple choice

Which DNS record type is used to verify domain ownership for email security (SPF) and is stored as a text string?

Question 81easymultiple choice

Which wireless standard is commonly known as Wi-Fi 6 and operates in both 2.4 GHz and 5 GHz bands?

Question 82mediummultiple choice

In an SDN architecture, which layer is responsible for making decisions about where traffic should be forwarded?

Question 83hardmultiple choice

A network engineer configures an HTTP/2 server. Which feature of HTTP/2 reduces overhead by compressing headers using HPACK?

Question 84easymultiple choice

Which non-overlapping channels are available in the 2.4 GHz band for Wi-Fi to minimize interference?

Question 85mediummultiple choice

A developer is creating a REST API client that needs to authenticate using credentials passed in the HTTP header. Which header should be used?

Question 86mediummultiple choice

Which of the following is a private IPv4 address range as defined by RFC 1918?

Question 87hardmultiple choice

In the OSI model, which layer is responsible for session management, including establishing, maintaining, and terminating connections between applications?

Question 88mediummulti select

A network administrator is configuring a DNS server. Which TWO DNS record types are used for IPv6 address resolution?

Question 89mediummulti select

Which THREE of the following are characteristics of the UDP protocol?

Question 90hardmulti select

An engineer is troubleshooting a network issue where a client cannot reach a server. The client uses HTTPS. Which TWO factors are essential for a successful TLS handshake?

Question 91easymultiple choice

An engineer is troubleshooting a network issue and needs to verify the MAC address of the next-hop router on a directly connected segment. Which layer of the OSI model does the engineer need to examine to find this information?

Question 92mediummultiple choice

A network administrator is configuring a new subnet for a branch office that requires 50 usable host addresses. The corporate network uses the 192.168.10.0/24 block. Which subnet mask should be used to meet the requirement with minimal waste?

Question 93easymulti select

A DevOps team is deploying a microservices application that requires both reliable data transfer and low-latency real-time communication. Which two protocols should be used for these respective requirements? (Choose two.)

Question 94mediummulti select

An administrator is configuring DNS records for a company's domain. Which three DNS record types are most commonly used to map hostnames to IP addresses or aliases? (Choose three.)

Question 95mediummulti select

A network engineer is designing a wireless network for an office that requires high throughput and minimal interference. Which two channels should be used for the 2.4 GHz band to avoid overlap? (Choose two.)

Question 96mediummulti select

A software-defined networking (SDN) controller is being deployed to manage network devices. Which two components are part of the SDN architecture? (Choose two.)

Question 97hardmulti select

An organization is planning to implement HTTPS for their web services. Which three statements accurately describe the HTTPS protocol? (Choose three.)

Question 98hardmulti select

A network engineer is analyzing traffic and needs to identify which applications use UDP. Which three applications commonly use UDP as their transport protocol? (Choose three.)

Question 99hardmulti select