SkillTestPro | CCST Networking Practice Test 3

CCST Networking Practice Test 3

Cisco Certified Support Technician (CCST) – Networking Practice Test

1 / 20

What is the purpose of ipconfig /flushdns?

To renew the IP address

To clear the DNS resolver cache

To reset network settings

To restart the DHCP service

To enable IP forwarding

2 / 20

A technician needs to configure a switch with a management IP address. What must be assigned first?

VLAN 1

A subnet mask

A default gateway

A loopback address

An interface

3 / 20

What type of record does DNS use to resolve a hostname to an IP address?

CNAME

TXT

PTR

4 / 20

What is a characteristic of IPv6 that differs from IPv4?

IPv6 uses MAC addresses instead of IP addresses

IPv6 does not require subnetting

IPv6 has a larger address space

IPv6 does not support multicast

IPv6 does not require routers

5 / 20

What is the role of QoS (Quality of Service) in networking?

To prioritize network traffic based on type

To encrypt data before transmission

To block unauthorized devices

To assign static IP addresses

To configure VLANs

6 / 20

What does an IPv4 subnet mask of 255.255.255.192 indicate?

A /24 subnet

A /26 subnet

A /27 subnet

A /30 subnet

A /29 subnet

7 / 20

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

To monitor network traffic

To convert private IPs to public IPs

To encrypt network communications

To filter and block unauthorized traffic

To assign VLANs

8 / 20

Which command displays the MAC address table on a Cisco switch?

show interfaces

show ip route

show mac address-table

show vlan

show arp

9 / 20

What is the purpose of the default gateway in a network?

To connect devices in the same subnet

To assign MAC addresses

To act as a DNS resolver

To forward packets to external networks

To provide encryption

10 / 20

A technician is troubleshooting a slow network connection. Which tool would provide real-time network traffic analysis?

ping

Wireshark

traceroute

netstat

ipconfig

11 / 20

What type of address is FE80::1?

Public IPv4

Private IPv4

IPv6 link-local

IPv6 global unicast

Multicast

12 / 20

What protocol is commonly used to automatically assign IP addresses to devices on a network?

DNS

FTP

SNMP

DHCP

ICMP

13 / 20

A user connects a new computer to the network but cannot access the internet. Running ipconfig shows an IP address of 169.254.45.12. What does this indicate?

The computer is connected to a VLAN

The DHCP server is unavailable

The device is blocked by a firewall

The network cable is unplugged

The subnet mask is incorrect

14 / 20

Which of the following is a private IP address?

172.32.5.5

11.0.0.1

192.168.1.100

200.50.25.5

150.150.150.150

15 / 20

A network administrator wants to assign static IP addresses to all printers in the office. What setting must be configured to ensure these devices always have the same IP?

Subnet mask

Default gateway

DNS settings

MAC address filtering

Static DHCP reservation

16 / 20

What is the purpose of a loopback address in networking?

To test network connectivity within a device

To forward traffic between VLANs

To assign an IP address to multiple devices

To resolve DNS queries

To establish an encrypted connection

17 / 20

A user reports that they cannot reach a specific website, but all other websites are working fine. Which tool would BEST help diagnose the issue?

ping

traceroute

netstat

arp

nslookup

18 / 20

Which network device operates at the Data Link Layer and forwards traffic based on MAC addresses?

Router

Hub

Switch

Repeater

Firewall

19 / 20

A company wants to segment their network so that finance and sales departments cannot directly communicate. What is the BEST way to accomplish this?

Assign different IP address ranges to each department

Use a firewall to block inter-department traffic

Use different SSIDs for wireless access

Configure VLANs on the network switches

Disable unnecessary ports on the switch

20 / 20

A network technician is troubleshooting a device that is unable to communicate with other devices on the same subnet. The device has an IP address assigned but cannot reach its default gateway. Which of the following is the MOST likely issue?

The switch port is disabled

The device has an incorrect subnet mask

The router is using a static route

A DHCP server is down

The network cable is unplugged

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