CCNA Practice Exam 69 — 20 Questions

Question 1

Match the data format to its most accurate characteristic.

Accepted Answer

JSON: Lightweight, key-value based data format. JSON is lightweight and key-value based, XML uses tags and attributes, YAML relies on indentation, CSV is for tabular data, Protobuf is a binary schema-driven format, and HTML is for web page structure.

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XML: Binary schema-driven format

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YAML: Uses tags and attributes

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CSV: For web page structure

Question 2

Drag and drop the VLAN and trunking commands/concepts on the left to their correct descriptions on the right.

Accepted Answer

VLAN: A logical segmentation of a network into separate broadcast domains at Layer 2.. These are fundamental VLAN/trunking concepts: VLAN segments, trunk carries multiple VLANs, access port is single VLAN, 802.1Q is tagging standard, VLAN ID is the identifier.

Question 3

Drag and drop the OSI layer names on the left to the correct PDU names on the right.

Accepted Answer

Physical layer: Bits. OSI layers and their PDUs: Physical=bits, Data Link=frames, Network=packets, Transport=segments, Session=data (or upper layer data).

Question 4

Match each automation-related term to its most accurate description.

Accepted Answer

Ansible: An agentless automation tool that uses SSH and YAML playbooks for configuration management.. JSON is a lightweight data-interchange format commonly used to structure API request and response payloads. REST is an architectural style that uses HTTP methods to enable stateless interactions between software systems. An API is a defined set of rules and protocols that allows different software applications to communicate with each other. YANG is a data modeling language specifically designed to model configuration and state data for network devices, often used with NETCONF and RESTCONF.

Question 5

Drag and drop the following steps into the correct order to replace a faulty SFP module on a Cisco switch and verify the fiber interface.

Accepted Answer

Disconnect the fiber cable from the SFP module.. To replace a faulty SFP, first disconnect the cable to avoid damage, then remove the old module, insert the new one, reconnect the cable, and finally verify the interface is operational.

Question 6

Drag and drop the STP-related terms on the left to their correct descriptions on the right.

Accepted Answer

Root Bridge: The bridge with the lowest bridge ID in the STP topology. These pairings correctly match STP terms with their standard definitions as used in networking certifications.

Question 7

Match each AAA component or related term to its most accurate meaning.

Accepted Answer

Authentication: Verifies the identity of a user or device before granting access to the network.. In AAA, Authentication verifies identity (who you are), Authorization determines allowed actions (what you can do), Accounting records activity for auditing. A local database stores credentials on the device for local authentication checks. These definitions directly match the pairs in the question.

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Authorization: Determines what resources or actions an authenticated user is permitted to access.

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Accounting: Tracks and logs user activities, such as login times, commands executed, and data usage.

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RADIUS: A protocol that provides AAA services, commonly used for network access control.

Question 8

Drag and drop the OSPFv3 commands/terms on the left to the correct descriptions on the right.

Accepted Answer

ipv6 ospf 1 area 0: Enables OSPFv3 on an interface in area 0. These commands and terms are accurately paired with their OSPFv3 descriptions as per Cisco IOS.

Question 9

Match each service or protocol to the problem it most directly helps solve.

Accepted Answer

DNS: Resolves hostnames to IP addresses. Each service or protocol directly addresses a specific networking problem as described.

Question 10

Drag and drop the monitoring technologies on the left to the correct data model and transport descriptions on the right.

Accepted Answer

SNMP: Uses MIB and UDP for polling and traps. These pairings correctly match monitoring technologies with their typical data model and transport.

Question 11

Match each term to the role it most directly plays in an API workflow.

Accepted Answer

API Gateway: Manages and routes API requests. Each term is correctly paired with its role in an API workflow.

Question 12

Match each trunk or VLAN term to its most accurate function.

Accepted Answer

Access port: carries traffic for a single VLAN only, with no tagging.. Access ports carry traffic for one VLAN only; trunk ports carry multiple VLANs using tagging. The native VLAN is untagged on a trunk; VLAN 1 is the default. 802.1Q is the standard for tagging, and voice VLAN separates voice traffic.

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Trunk port: carries traffic for multiple VLANs using 802.1Q tagging.

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Native VLAN: the VLAN that is tagged on a trunk link by default.

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VLAN 1: the default voice VLAN on Cisco switches.

Question 13

Match each IP service or protocol to its most accurate purpose.

Accepted Answer

DNS: Resolves domain names to IP addresses. DHCP automatically assigns IP addresses and other network parameters to clients. DNS translates domain names into IP addresses. ARP resolves a local IPv4 address to a MAC address on the same subnet. NTP synchronizes device clocks over a network. These four protocols are correctly matched to their primary purposes.

Question 14

Match each networking concept to its most accurate role.

Accepted Answer

Unicast: one-to-one communication. A subnet mask distinguishes network and host portions of an IP address, enabling proper local and remote delivery decisions. The default gateway is the router's interface on the local subnet, serving as the exit point for traffic destined outside the local network. A MAC address is a hardware identifier used at Layer 2 to deliver frames to the correct next-hop device on the same link. The routing table contains network prefixes and next hops, allowing a router to select the best path for forwarding packets.

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Broadcast: one-to-closest communication

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Multicast: one-to-all communication

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Anycast: one-to-group communication

Question 15

Match each automation or programmability term to its most accurate description.

Accepted Answer

Controller: Central platform used to coordinate policy and management. These terms are fundamental to network automation and programmability. API enables software interaction, REST is a common API style, JSON and YAML are data formats, Ansible is a popular automation tool, and Python is a scripting language for automation.

Question 16

Match each API or programmability term to its most accurate meaning.

Accepted Answer

Controller: Centralized management or policy platform. The 'Controller' is a centralized platform that manages network devices and enforces policies. The 'Northbound API' provides an interface for applications and users to interact with the controller. 'JSON' is a lightweight, structured data format commonly used to exchange data in API payloads. A 'Token' is a credential-like value used to authenticate and authorize API requests, ensuring secure access to the controller.

Question 17

Match the network management function to its primary purpose.

Accepted Answer

SNMP: Monitors network devices and collects statistics. Syslog is used to send event and log messages to a logging server for centralized monitoring. NTP synchronizes device clocks to ensure consistent timestamps across the network. SNMP provides a framework for monitoring and exchanging management information between network devices and management systems. TFTP transfers files such as configurations or IOS images but lacks strong built-in security, making it suitable for simple file transfers in controlled environments. The other protocols (NetFlow, RADIUS) are not part of this matching exercise.

Question 18

Match each protocol or service to its primary function.

Accepted Answer

HTTP: Transfers web pages and resources. DNS (Domain Name System) translates human-readable domain names into IP addresses that devices use to communicate. NTP (Network Time Protocol) ensures that clocks on network devices are synchronized, critical for logging and authentication. Syslog is the standard for sending and collecting event and log messages from network devices to a central server. DHCP (Dynamic Host Configuration Protocol) dynamically assigns IP addresses, subnet masks, default gateways, and other network configuration parameters to client devices, simplifying network management.

Question 19

Match each switchport or VLAN term to its most accurate meaning.

Accepted Answer

Access port: A switch port that belongs to a single VLAN and carries untagged traffic for that VLAN.. Access ports are in one VLAN; trunk ports carry multiple VLANs with tags. Switchport mode commands set the port type. VLANs create separate broadcast domains; SVIs provide Layer 3 routing for VLANs.

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Trunk port: A switch port that carries traffic for multiple VLANs and uses 802.1Q tagging to identify each frame's VLAN.

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VLAN: A logical grouping of devices that are on the same broadcast domain, regardless of physical location.

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SVI: A virtual interface on a switch that provides Layer 3 routing for a VLAN.

Question 20

Drag and drop the following steps into the correct order to install a new fiber optic cable, insert the SFP, and verify the link on a Cisco switch.

Accepted Answer

Install the SFP module into the switch port.. First install the SFP, then attach the cable, ensure both ends are connected, then verify link and check for errors to confirm proper installation.

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Attach the fiber optic cable to the SFP.

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Verify the link status using the 'show interfaces' command.

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Check for errors using the 'show interfaces counters errors' command.