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CISCO CCNA (LATEST EXAM) PRACTICE TEST QUESTIONS AND 100% VERIFIED ANSWERS PLUS RATIONALE, Exams of IP Multimedia Subsystems

Walden UniversityIP Multimedia Subsystems

CISCO CCNA (LATEST EXAM) PRACTICE TEST QUESTIONS AND 100% VERIFIED ANSWERS PLUS RATIONALE WITH INSTANT DOWNLOAD PDF 2026.

Typology: Exams

2025/2026

Available from 04/13/2026

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CISCO CCNA (LATEST EXAM) PRACTICE TEST
QUESTIONS AND 100% VERIFIED ANSWERS PLUS
RATIONALE WITH INSTANT DOWNLOAD PDF 2026.
1. Which OSI layer is responsible for logical addressing and routing?
A. Data Link
B. Network
C. Transport
D. Session
Correct Answer: B
Rationale: The Network layer handles logical addressing (IP) and routing. Data Link
handles MAC addressing, Transport ensures delivery, and Session manages
connections.
2. Which protocol is used to map IP addresses to MAC addresses in IPv4 networks?
A. DNS
B. ARP
C. DHCP
D. ICMP
Correct Answer: B
Rationale: ARP resolves IP addresses to MAC addresses. DNS resolves names,
DHCP assigns IPs, and ICMP handles error reporting.
3. What is the default subnet mask for a Class C IP address?
A. 255.0.0.0
B. 255.255.0.0
C. 255.255.255.0
D. 255.255.255.255
Correct Answer: C
Rationale: Class C networks use 255.255.255.0 as default. Other masks correspond to
different classes or special purposes.
4. Which command verifies the IP configuration on a Cisco router interface?
A. show ip interface brief
B. show running-config
C. show version
D. show protocols
Correct Answer: A
Rationale: This command provides a quick overview of interface status and IP
addresses. Others provide broader or different information.
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pf12
pf13
pf14
pf15
pf16
pf17
pf18
pf19
pf1a
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pf1c
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Partial preview of the text

Download CISCO CCNA (LATEST EXAM) PRACTICE TEST QUESTIONS AND 100% VERIFIED ANSWERS PLUS RATIONALE and more Exams IP Multimedia Subsystems in PDF only on Docsity!

CISCO CCNA (LATEST EXAM) PRACTICE TEST

QUESTIONS AND 100% VERIFIED ANSWERS PLUS

RATIONALE WITH INSTANT DOWNLOAD PDF 2026.

  1. Which OSI layer is responsible for logical addressing and routing? A. Data Link B. Network C. Transport D. Session Correct Answer: B Rationale: The Network layer handles logical addressing (IP) and routing. Data Link handles MAC addressing, Transport ensures delivery, and Session manages connections.
  2. Which protocol is used to map IP addresses to MAC addresses in IPv4 networks? A. DNS B. ARP C. DHCP D. ICMP Correct Answer: B Rationale: ARP resolves IP addresses to MAC addresses. DNS resolves names, DHCP assigns IPs, and ICMP handles error reporting.
  3. What is the default subnet mask for a Class C IP address? A. 255.0.0. B. 255.255.0. C. 255.255.255. D. 255.255.255. Correct Answer: C Rationale: Class C networks use 255.255.255.0 as default. Other masks correspond to different classes or special purposes.
  4. Which command verifies the IP configuration on a Cisco router interface? A. show ip interface brief B. show running-config C. show version D. show protocols Correct Answer: A Rationale: This command provides a quick overview of interface status and IP addresses. Others provide broader or different information.
  1. Which device operates at Layer 2 and forwards frames based on MAC addresses? A. Router B. Switch C. Hub D. Firewall Correct Answer: B Rationale: Switches operate at Layer 2 using MAC addresses. Routers use IP, hubs broadcast blindly, and firewalls filter traffic.
  2. What is the purpose of VLANs? A. Increase bandwidth B. Segment broadcast domains C. Provide routing D. Encrypt traffic Correct Answer: B Rationale: VLANs logically segment networks into separate broadcast domains. They do not inherently increase bandwidth or encrypt traffic.
  3. Which routing protocol uses hop count as its metric? A. OSPF B. EIGRP C. RIP D. BGP Correct Answer: C Rationale: RIP uses hop count. OSPF uses cost, EIGRP uses composite metrics, and BGP uses path attributes.
  4. Which command saves the running configuration to NVRAM? A. copy running-config startup-config B. write erase C. reload D. erase startup-config Correct Answer: A Rationale: This command saves current configuration. Others delete or reload configurations.
  5. What is the purpose of the default gateway? A. Connect devices within the same subnet B. Forward traffic to remote networks C. Assign IP addresses
  1. Which command tests connectivity to another host? A. traceroute B. ping C. show ip route D. netstat Correct Answer: B Rationale: Ping uses ICMP to test connectivity. Traceroute maps path, others provide different data.
  2. Which layer ensures error-free data delivery between nodes? A. Network B. Data Link C. Transport D. Application Correct Answer: C Rationale: Transport layer ensures reliable delivery. Data Link handles local delivery only.
  3. What does STP prevent in a switched network? A. Broadcast storms B. Routing loops C. Switching loops D. IP conflicts Correct Answer: C Rationale: STP prevents Layer 2 loops. Broadcast storms are a consequence but not the direct function.
  4. Which command displays the routing table? A. show ip route B. show interfaces C. show arp D. show vlan Correct Answer: A Rationale: This command shows all known routes. Others display different data.
  5. What is the purpose of OSPF? A. Assign IP addresses B. Provide dynamic routing C. Encrypt data D. Translate IP addresses Correct Answer: B

Rationale: OSPF is a link-state routing protocol. It does not assign IPs or encrypt traffic.

  1. Which cable type is used to connect similar devices directly? A. Straight-through B. Crossover C. Fiber D. Console Correct Answer: B Rationale: Crossover cables connect similar devices. Straight-through connects different device types.
  2. What is the range of valid TCP port numbers? A. 0– 255 B. 0– 1023 C. 0– 65535 D. 1024– 65535 Correct Answer: C Rationale: TCP ports range from 0 to 65535. Subsets define well-known and ephemeral ports.
  3. Which IPv6 address type is equivalent to IPv4 broadcast? A. Multicast B. Anycast C. Unicast D. Loopback Correct Answer: A Rationale: IPv6 uses multicast instead of broadcast. Broadcast does not exist in IPv6.
  4. What is the purpose of ICMP? A. File transfer B. Error reporting and diagnostics C. Routing D. Address assignment Correct Answer: B Rationale: ICMP is used for error messages and diagnostics like ping.
  5. Which command shows VLAN information on a switch? A. show vlan brief B. show mac address-table

C. 802.11ac D. 802.11a only Correct Answer: C Rationale: 802.11ac operates at 5 GHz with high throughput. Others are slower or legacy.

  1. What is the purpose of a MAC address? A. Identify a device logically B. Identify a device physically C. Assign IP addresses D. Route packets Correct Answer: B Rationale: MAC addresses uniquely identify network interfaces at Layer 2.
  2. Which command traces the path to a destination? A. ping B. traceroute C. netstat D. ipconfig Correct Answer: B Rationale: Traceroute shows the path packets take. Ping only checks connectivity.
  3. Which IPv4 address range is reserved for private networks (Class A)? A. 172.16.0.0 – 172.31.255. B. 192.168.0.0 – 192.168.255. C. 10.0.0.0 – 10.255.255. D. 169.254.0.0 – 169.254.255. Correct Answer: C Rationale: 10.0.0.0/8 is the Class A private range. Other options represent Class B, Class C private, and APIPA ranges respectively.
  4. What does a switch use to build its MAC address table? A. ARP requests B. Source MAC addresses of incoming frames C. Destination MAC addresses D. IP routing table Correct Answer: B Rationale: Switches learn MAC addresses by examining the source MAC of incoming frames. Destination MACs are used for forwarding decisions.
  1. Which protocol operates at Layer 7 of the OSI model? A. HTTP B. TCP C. IP D. ARP Correct Answer: A Rationale: HTTP is an Application layer protocol. TCP is Layer 4, IP is Layer 3, and ARP operates between Layers 2 and 3.
  2. Which command displays ARP table entries on a Cisco device? A. show ip route B. show arp C. show mac address-table D. show interfaces Correct Answer: B Rationale: The ARP table maps IP addresses to MAC addresses and is viewed using the show arp command.
  3. What is the primary function of DNS? A. Assign IP addresses B. Resolve domain names to IP addresses C. Route packets D. Encrypt data Correct Answer: B Rationale: DNS translates human-readable names into IP addresses. It does not assign IPs or route packets.
  4. Which switching method has the lowest latency? A. Store-and-forward B. Cut-through C. Fragment-free D. Adaptive switching Correct Answer: B Rationale: Cut-through switching forwards frames as soon as the destination MAC is read, minimizing latency.
  5. Which protocol is used for secure remote access to network devices? A. Telnet B. SSH C. FTP D. HTTP

D. Encrypt traffic Correct Answer: B Rationale: Cisco Discovery Protocol helps identify neighboring Cisco devices.

  1. Which type of address is FF:FF:FF:FF:FF:FF? A. Multicast B. Broadcast C. Unicast D. Anycast Correct Answer: B Rationale: This is the MAC broadcast address used to send frames to all devices.
  2. What is the default administrative distance of OSPF? A. 90 B. 110 C. 120 D. 1 Correct Answer: B Rationale: OSPF has an administrative distance of 110.
  3. Which protocol provides time synchronization? A. FTP B. NTP C. SMTP D. SNMP Correct Answer: B Rationale: Network Time Protocol synchronizes clocks across devices.
  4. Which command shows interface statistics and errors? A. show ip route B. show interfaces C. show version D. show arp Correct Answer: B Rationale: This command provides detailed interface information including errors.
  5. What is the function of an access control list (ACL)? A. Assign IP addresses B. Filter traffic C. Route packets

D. Encrypt data Correct Answer: B Rationale: ACLs control which traffic is allowed or denied.

  1. Which IPv6 address represents the loopback address? A. :: B. :: C. FE80:: D. FF00:: Correct Answer: A Rationale: ::1 is the IPv6 loopback address.
  2. What is the purpose of EtherChannel? A. Increase redundancy and bandwidth B. Assign VLANs C. Encrypt data D. Route traffic Correct Answer: A Rationale: EtherChannel bundles multiple links into one logical link.
  3. Which command enters global configuration mode? A. enable B. configure terminal C. show running-config D. exit Correct Answer: B Rationale: This command allows configuration changes on the device.
  4. Which protocol is used for sending email? A. POP B. SMTP C. IMAP D. FTP Correct Answer: B Rationale: SMTP is used to send emails, while POP3/IMAP retrieve them.
  5. What is the purpose of a subnet mask? A. Identify network and host portions B. Encrypt data C. Assign IP addresses

D. 110

Correct Answer: A Rationale: FTP uses ports 20 (data) and 21 (control).

  1. Which command disables an interface? A. shutdown B. no shutdown C. disable D. interface down Correct Answer: A Rationale: The shutdown command administratively disables an interface.
  2. What is the purpose of SNMP? A. File transfer B. Network monitoring C. Routing D. Encryption Correct Answer: B Rationale: SNMP is used for monitoring and managing network devices.
  3. Which topology uses a central device? A. Bus B. Ring C. Star D. Mesh Correct Answer: C Rationale: Star topology connects all devices to a central hub or switch.
  4. What is the default VLAN on Cisco switches? A. VLAN 0 B. VLAN 1 C. VLAN 100 D. VLAN 4096 Correct Answer: B Rationale: VLAN 1 is the default VLAN on Cisco switches.
  5. Which protocol uses UDP? A. TCP B. HTTP C. DNS

D. SSH

Correct Answer: C Rationale: DNS commonly uses UDP for queries.

  1. What is the maximum cable length for Ethernet over UTP? A. 50 meters B. 100 meters C. 200 meters D. 500 meters Correct Answer: B Rationale: Standard Ethernet UTP maximum length is 100 meters.
  2. Which device separates collision domains? A. Hub B. Switch C. Repeater D. Bridge (legacy hub) Correct Answer: B Rationale: Switches create separate collision domains per port.
  3. Which protocol is used to securely transfer files? A. FTP B. TFTP C. SFTP D. HTTP Correct Answer: C Rationale: SFTP provides secure file transfer over SSH.
  4. What is the binary equivalent of decimal 255? A. 11111111 B. 00000000 C. 10101010 D. 11001100 Correct Answer: A Rationale: 255 in decimal equals 11111111 in binary.
  5. Which command shows active connections on a device? A. netstat B. ping C. traceroute

B. Store paths to destination networks C. Encrypt data D. Assign IP addresses Correct Answer: B Rationale: Routing tables contain routes to reach different networks.

  1. Which command displays NAT translations? A. show ip nat translations B. show ip route C. show arp D. show interfaces Correct Answer: A Rationale: This command shows active NAT mappings.
  2. Which type of NAT maps multiple private IPs to a single public IP? A. Static NAT B. Dynamic NAT C. PAT D. SNAT Correct Answer: C Rationale: PAT (Port Address Translation) allows many-to-one mapping.
  3. Which field in an Ethernet frame contains error detection information? A. Preamble B. Source MAC C. FCS D. Type Correct Answer: C Rationale: Frame Check Sequence detects errors in transmission.
  4. Which command configures a router hostname? A. name B. hostname C. set name D. router-name Correct Answer: B Rationale: The hostname command sets the device name.
  5. Which protocol is used to transfer files without authentication? A. FTP

B. SFTP

C. TFTP

D. SCP

Correct Answer: C Rationale: TFTP is lightweight and does not require authentication.

  1. What is the purpose of port security? A. Encrypt traffic B. Limit MAC addresses on a port C. Assign IP addresses D. Route packets Correct Answer: B Rationale: Port security restricts which MAC addresses can access a port.
  2. Which IPv4 address is a loopback address? A. 0.0.0. B. 127.0.0. C. 255.255.255. D. 192.168.1. Correct Answer: B Rationale: 127.0.0.1 is used for loopback testing.
  3. Which protocol uses port 22? A. FTP B. SSH C. HTTP D. SMTP Correct Answer: B Rationale: SSH uses port 22 for secure remote access.
  4. What is the purpose of spanning tree root bridge? A. Assign VLANs B. Control switching loops C. Route traffic D. Assign IP addresses Correct Answer: B Rationale: The root bridge is central to STP loop prevention.
  5. Which command configures a static route? A. ip route

B. HTTP

C. FTP

D. SNMP

Correct Answer: A Rationale: DNS uses port 53 for queries.

  1. Which switching mode checks the first 64 bytes? A. Cut-through B. Store-and-forward C. Fragment-free D. Fast-forward Correct Answer: C Rationale: Fragment-free checks first 64 bytes to avoid collisions.
  2. Which IPv6 address type is routable on the internet? A. Link-local B. Unique local C. Global unicast D. Multicast Correct Answer: C Rationale: Global unicast addresses are publicly routable.
  3. What is the function of DHCP relay? A. Assign IP addresses B. Forward DHCP requests across networks C. Encrypt DHCP traffic D. Resolve DNS Correct Answer: B Rationale: DHCP relay forwards client requests to remote servers.
  4. Which command shows CPU and memory usage? A. show processes B. show version C. show ip route D. show interfaces Correct Answer: A Rationale: This command displays system resource usage.
  5. Which protocol provides network redundancy at Layer 3? A. STP

B. HSRP

C. VLAN

D. ARP

Correct Answer: B Rationale: HSRP provides gateway redundancy.

  1. Which type of cable connects a PC to a switch? A. Crossover B. Straight-through C. Fiber D. Rollover Correct Answer: B Rationale: Straight-through cables connect different device types.
  2. Which command erases startup configuration? A. delete config B. erase startup-config C. clear config D. remove config Correct Answer: B Rationale: This command deletes saved configuration.
  3. What is the purpose of a routing protocol? A. Assign MAC addresses B. Discover and maintain routes C. Encrypt traffic D. Assign IP addresses Correct Answer: B Rationale: Routing protocols dynamically learn network paths.
  4. Which protocol uses port 161? A. SNMP B. DNS C. FTP D. HTTP Correct Answer: A Rationale: SNMP uses port 161 for communication.
  5. Which address type sends traffic to one device? A. Broadcast