Standards and Concepts

A network technician is troubleshooting a connectivity issue where a workstation can communicate with local devices but cannot access any resources on a different subnet. After verifying the IP address and subnet mask, which component should be investigated next to ensure the packet can leave the local segment?

An organization is upgrading its cabling infrastructure to support Gigabit Ethernet over a distance of 85 meters. Which twisted-pair cable category is the minimum requirement to reliably support 1000 Mbps speeds at this specific distance?

Which TWO characteristics distinguish the User Datagram Protocol (UDP) from the Transmission Control Protocol (TCP)?

Which THREE statements accurately describe the functions of a Layer 2 switch in a local area network?

A network administrator is implementing IPv6 in a corporate environment. Which TWO address types are commonly used to facilitate local link communication and global internet access respectively?

Which layer of the OSI model is responsible for determining the best physical path for data to travel across multiple interconnected networks using logical addressing?

What is the primary function of the Address Resolution Protocol (ARP) in an IPv4 network?

Which TWO protocols are commonly used to retrieve email from a remote server to a local mail client?

Which field in an IPv4 header is used to prevent a packet from circulating indefinitely in the event of a routing loop?

A user is unable to reach 'cisco.com' in their web browser but can successfully ping the IP address '72.163.4.161'. Which network service is most likely failing or misconfigured?

A network administrator is troubleshooting an issue where a workstation cannot communicate with a server on a different subnet. The workstation has an IP address of 192.168.1.5/24 and the server is at 192.168.2.10/24. Which component is strictly responsible for routing traffic across these disparate subnets?

Which TWO of the following statements accurately describe the characteristics of the OSI model's Data Link layer (Layer 2)? (Choose two.)

Refer to the exhibit. An administrator observes that interface Gig0/1 is in 'up' status but experiences high latency and interface errors. Based on the provided configuration, what is the most likely cause?

Which protocol operates at the Application layer of the TCP/IP model and is used to resolve hostnames into IP addresses?

Which THREE features are provided by the Transport layer of the OSI model? (Choose three.)

A network administrator needs to ensure that data remains confidential during transit across an untrusted network. Which protocol implementation best addresses this requirement?

Which of the following scenarios best demonstrates the function of the Network layer in the OSI model?

Which field in the IPv4 header is primarily responsible for preventing a packet from looping indefinitely in a network?

Which of the following best describes the benefit of implementing a hierarchical network design model?

Refer to the exhibit. An administrator is troubleshooting interface Gig0/1. The status is 'up/down'. What is the most likely reason for this state?

Which statement correctly describes the function of a default gateway in a host's TCP/IP configuration?

When a router receives a packet, what action does it take if the destination network is not in its routing table and no default route is configured?

Which of the following describes the purpose of a Subnet Mask in an IP configuration?

A technician is troubleshooting a connectivity issue where a host can ping its default gateway but cannot reach a server on a different subnet. At which OSI layer is the routing decision being made?

A company is deploying a new Voice over IP (VoIP) system and needs to minimize latency. Which transport protocol is most suitable for the real-time voice stream, and why?

Refer to the exhibit. If a frame with a destination MAC address of 0055.4433.2211 arrives on interface FastEthernet 0/1, how will the switch handle the traffic?

An administrator is running UTP cabling near heavy machinery and fluorescent lights. Users report intermittent connectivity and slow speeds. What is the most likely cause of this issue?

A startup wants to host a custom application in the cloud without managing the underlying operating system or hardware. Which THREE cloud service models or characteristics are relevant to this requirement?

A network engineer is migrating a network to IPv6 to solve address exhaustion. Which feature of IPv6 eliminates the need for broadcasting to discover MAC addresses on a local link?

Refer to the exhibit. A company applies this JSON security policy to its edge firewall. What is the primary standard or concept being enforced by this configuration?

As data moves down the OSI model from the Application layer to the Physical layer, what is the process called where each layer adds its own control information?

A technician is examining a frame captured on a switch port and sees the destination MAC address field set to FF:FF:FF:FF:FF:FF. What is the purpose of this address in an Ethernet network?

A network administrator is configuring a switch port that connects to a server. The administrator wants to ensure that the port does not participate in Spanning Tree Protocol (STP) and immediately transitions to the forwarding state when the link comes up. Which feature should be configured on this port?

A network administrator is documenting the OSI model layers for a training manual. The administrator needs to identify which OSI layer is responsible for establishing, managing, and terminating sessions between applications on different hosts. Which OSI layer should be documented?

A network technician is troubleshooting a connectivity issue. The technician suspects that a router is not forwarding packets correctly because the Time to Live (TTL) value in the IP header is being decremented to zero. Which field in the IPv4 header is responsible for this decrementing behavior and the subsequent discarding of the packet?

A network engineer is configuring a new switch and needs to ensure that management traffic is isolated from user data traffic. The engineer decides to create a separate VLAN for management and assign an IP address to a switch virtual interface (SVI) on that VLAN. Which type of VLAN is being implemented?

A technician is documenting the OSI model for a training manual and needs to identify which layer is responsible for logical addressing and path determination between networks. Which OSI layer performs this function?

A network administrator is reviewing the OSI model layer responsibilities. The administrator needs to identify which layer is responsible for establishing, managing, and terminating sessions between applications on different hosts. Which OSI layer performs this function?

A network administrator is configuring a switch port for a server that must be reachable by multiple VLANs without routing through an external router. Which feature should be configured on the switch port?

A network administrator is evaluating a new campus LAN design. The design requires a Layer 2 protocol that prevents switching loops by placing redundant switch ports into a blocking state while still allowing automatic failover if the active path fails. Which protocol should the administrator select?

A technician is documenting the TCP/IP model for a training manual. The manual must describe the layer that is responsible for logical addressing and routing of packets between different networks. Which layer of the TCP/IP model performs this function?

A technician is documenting a small office network that uses a single 48-port Cisco switch. Users complain that when two computers transmit simultaneously, the whole network slows down. The technician confirms the switch is not configured with VLANs and all ports are in the default VLAN. Which characteristic of the default VLAN on a Cisco switch explains this behavior?

A network administrator is configuring a router interface with the IP address 192.168.10.1 and subnet mask 255.255.255.224. The administrator needs to determine the number of usable host addresses available on this subnet. How many usable host addresses are provided by this subnet mask?

A network engineer is analyzing a packet capture and observes a TCP segment with the SYN flag set and the ACK flag not set. The engineer needs to determine the purpose of this segment in the TCP three-way handshake. What is the purpose of this TCP segment?

A network administrator is comparing TCP and UDP for different applications on a converged network. The administrator needs to identify characteristics that are true of TCP but not of UDP. Which two characteristics apply to TCP? (Choose two.)

A network administrator is configuring a new Cisco switch. The administrator wants to ensure that management traffic for SSH and SNMP is separated from user data and that only the management VLAN can reach the switch's management IP address. Which action should the administrator take?

A network administrator is configuring a switch and needs to ensure that only one VLAN is carried on a specific access port. The administrator wants to assign VLAN 10 to a port connected to a user's PC. Which command should the administrator use on a Cisco switch to assign the port to VLAN 10?

A network engineer is planning an IPv4 addressing scheme for a point-to-point WAN link between two routers. The engineer wants to conserve addresses and use a mask that provides exactly two usable host addresses on the link. Which subnet mask should be used?

A network engineer is comparing TCP and UDP for a new application that streams live video to many users. The application can tolerate some packet loss but requires low latency. The engineer wants to choose the transport protocol and configure it appropriately. Which two characteristics describe UDP in this scenario? (Choose two.)

A support technician is configuring a wireless access point for a small office. The office wants to allow guest devices to connect without exposing internal resources, while keeping employee traffic separated. Which feature should the technician configure on the access point?

A network engineer is analyzing a packet capture and notices that a TCP segment has the SYN flag set and the ACK flag set. The source port is 80 and the destination port is 49152. What does this indicate about the TCP connection?