D325 Networks Final - Set 3 - Part 1

Test your knowledge of technical writing concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 1: A network administrator is troubleshooting a routing issue and needs to check which routes are known to a router. What command should be used to display the routing table on a Cisco router?

show ip route

show interface

show config

show protocols

Question 2: Which of the following describes the purpose of a DMZ in a network?

To secure internal traffic

To segment sensitive data

To create a buffer zone between the public Internet and the internal network

To act as a firewall

Question 3: Which of the following is the maximum transmission unit (MTU) for a standard Ethernet frame?

1500 bytes

1518 bytes

1400 bytes

9000 bytes

Question 4: A network technician is setting up a new wireless network and wants to ensure it is encrypted. Which of the following encryption standards should be used to provide the strongest security?

WEP

WPA

WPA2

Open network

Question 5: Which of the following is the default port used by DNS to resolve domain names to IP addresses?

110

Question 6: What type of cabling is typically used for a cable television (CATV) connection?

Fiber optic

UTP

Coaxial

STP

Question 7: Which of the following is a valid IP address in the Class B private IP range?

10.1.1.1

172.16.5.1

192.168.10.10

169.254.1.1

Question 8: A technician needs to use an IP addressing scheme that allows for subnetting and supernetting. Which of the following protocols supports this capability?

RIP

OSPF

IGRP

EIGRP

Question 9: Which of the following commands is used on a Windows system to display the IP configuration and network adapter details?

nslookup

ifconfig

ipconfig

ping

Question 10: Which of the following DNS records is used to specify the mail servers responsible for receiving email for a domain?

CNAME

AAAA

Question 11: A technician needs to install new wireless access points in a building with multiple floors. Which of the following antennas would provide the best coverage in this environment?

Omnidirectional

Yagi

Directional

Parabolic

Question 12: What protocol is used by email clients to retrieve messages from a mail server?

SMTP

POP3

SNMP

NTP

Question 13: A network administrator wants to create a secure method for remote users to connect to the internal network. Which of the following should the administrator implement?

Telnet

FTP

VPN

HTTP

Question 14: Which of the following devices separates broadcast domains in a network?

Hub

Switch

Router

Repeater

Question 15: A technician is configuring an 802.1Q trunk link between two switches. What is the purpose of this configuration?

To prevent loops in the network

To allow multiple VLANs to communicate over a single physical link

To secure the network from unauthorized access

To assign IP addresses to devices

Question 16: What is the default subnet mask for a Class C IP address?

255.0.0.0

255.255.0.0

255.255.255.0

255.255.255.255

Question 17: Which of the following protocols uses port 22 to provide secure remote access to network devices?

HTTP

Telnet

SSH

RDP

Question 18: Which of the following commands is used to trace the route that packets take to reach a destination?

ping

tracert

ipconfig

netstat

Question 19: What is the purpose of NAT (Network Address Translation)?

To assign IP addresses to devices

To map private IP addresses to public IP addresses for Internet communication

To provide encryption for sensitive data

To allocate bandwidth based on priority

Question 20: A network administrator wants to restrict traffic between two VLANs. What type of device is required to implement this configuration?

Hub

Repeater

Router

Switch

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