SkillTestPro | Cisco CCNA Exam Practice Test 6

Cisco CCNA Practice Test 6

Cisco CCNA Exam Practice Test

1 / 20

What is the purpose of VLAN trunking?

Encrypts VLAN traffic

Assigns IP addresses to VLANs

Extends a VLAN across multiple switches

Creates subnets dynamically

Blocks unauthorized VLANs

2 / 20

Which WAN technology uses labels to route packets instead of traditional IP routing?

PPP

Frame Relay

DSL

MPLS

OSPF

3 / 20

What is the purpose of CDP (Cisco Discovery Protocol)?

Detects neighboring Cisco devices

Assigns VLANs dynamically

Provides DNS resolution

Encrypts network traffic

Configures QoS policies

4 / 20

Which Cisco tool is used for real-time packet capture and analysis?

ACL

CDP

VTP

SSH

SPAN

5 / 20

A network engineer wants to prevent unauthorized DHCP servers from distributing addresses on a switch. What feature should be enabled?

VLAN pruning

DHCP snooping

Port mirroring

BPDU Guard

QoS

6 / 20

Which protocol is used to synchronize time across network devices?

SNMP

DNS

NTP

OSPF

FTP

7 / 20

A network administrator is troubleshooting connectivity issues. Which command tests end-to-end connectivity between two devices?

show interfaces

nslookup

tracert

ping

ipconfig

8 / 20

What is the function of NAT in networking?

Encrypts data packets

Prevents VLAN hopping

Prioritizes network traffic

Filters incoming and outgoing traffic

Converts private IPs to public IPs for internet access

9 / 20

A technician needs to configure an IP address on a Cisco router interface. Which command should be used?

ip address 192.168.1.1 255.255.255.0

interface vlan 1

set ip 192.168.1.1

ipconfig /all

assign-ip 192.168.1.1

10 / 20

What is the role of ARP in networking?

Resolves MAC addresses to IP addresses

Resolves IP addresses to MAC addresses

Routes packets across networks

Manages VLAN configurations

Encrypts network traffic

11 / 20

What is the purpose of a default route in a routing table?

To forward packets for unknown destinations

To direct traffic to a specific subnet

To provide a backup route

To filter unauthorized traffic

To resolve MAC addresses

12 / 20

A switch is experiencing high CPU usage due to continuous broadcast traffic. What is the most likely cause?

STP convergence

VLAN misconfiguration

Incorrect routing configuration

OSPF updates

Broadcast storm

13 / 20

A company needs to configure remote access to its network securely. Which protocol should they use?

Telnet

FTP

SSH

SNMP

TFTP

14 / 20

Which type of IPv6 address is automatically assigned to every interface and is only valid within the local link?

Global unicast

Anycast

Unique local

Link-local

Multicast

15 / 20

What is the function of the native VLAN in an 802.1Q trunk?

Prevents VLAN hopping

Prioritizes voice traffic

Encrypts VLAN data

Blocks unused VLANs

Carries untagged traffic across the trunk link

16 / 20

A technician is troubleshooting a network and needs to check the MAC address table of a switch. Which command should be used?

show ip route

show vlan brief

show mac address-table

show interfaces

show spanning-tree

17 / 20

Which protocol prevents switching loops by disabling redundant links in a LAN?

VLAN

STP

ARP

VTP

OSPF

18 / 20

A router has two paths to the same destination. One path has an OSPF cost of 10, and the other has an EIGRP metric of 2000. Which path will the router prefer?

The OSPF path

The EIGRP path

It will load balance between both

The path with the lowest metric

It depends on the administrative distance

19 / 20

A switch receives a broadcast frame. How does it handle this traffic?

Drops the frame

Forwards it only to devices on the same VLAN

Sends it to all ports except the one it was received on

Forwards it to the default gateway

Only forwards it if Spanning Tree Protocol is enabled

20 / 20

A network engineer needs to configure an interface with an IPv6 address that auto-configures itself without DHCP. Which type of address should be used?

Link-local

Unique local

Global unicast

EUI-64

Anycast

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