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CompTIA Network+

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

What device separates broadcast domains in a network?

a)

Router

b)

Switch

c)

Hub

d)

Repeater

2.

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

a)

DNS

b)

DHCP

c)

ARP

d)

ICMP

3.

What does an ACL (Access Control List) primarily control?

a)

Device performance

b)

Network traffic

c)

User authentication

d)

Bandwidth usage

4.

Which of the following protocols is used to securely access a remote computer?

a)

FTP

b)

Telnet

c)

SSH

d)

SMTP

5.

What does the ping command test?

a)

DNS resolution

b)

Network connectivity

c)

Bandwidth capacity

d)

Routing tables

6.

Which of the following types of firewalls filters traffic based on the packet header information?

a)

Application layer firewall

b)

Stateful firewall

c)

Packet filtering firewall

d)

Proxy firewall

7.

Which of the following is used to monitor and manage network devices?

a)

SMTP

b)

SNMP

c)

FTP

d)

DNS

8.

Which of the following is used to prevent loops in a network?

a)

Spanning Tree Protocol

b)

Link Aggregation Control Protocol

c)

Quality of Service

d)

Border Gateway Protocol

9.

Which protocol is used to send email from a client to a server?

a)

IMAP

b)

POP3

c)

SMTP

d)

FTP

10.

Which layer of the OSI model is responsible for data encryption?

a)

Network

b)

Data Link

c)

Session

d)

Presentation

11.

Which of the following uses a tunneling protocol to establish a secure connection over a public network?

a)

VPN

b)

VLAN

c)

IDS

d)

NAT

12.

What protocol is used to securely copy files between systems?

a)

FTP

b)

SCP

c)

TFTP

d)

HTTP

13.

Which of the following uses port 443 by default?

a)

FTP

b)

HTTP

c)

HTTPS

d)

SMTP

14.

Which of the following is a characteristic of a SAN (Storage Area Network)?

a)

Utilizes RAID for data redundancy

b)

Provides block-level storage

c)

Uses IP-based communication exclusively

d)

Typically has low storage capacity

15.

What is the purpose of a DMZ in network security?

a)

To encrypt sensitive data

b)

To isolate public-facing servers

c)

To segment internal networks

d)

To monitor network traffic

16.

What type of attack involves sending more data to a network buffer than it can handle?

a)

Phishing

b)

Buffer overflow

c)

Man-in-the-middle

d)

Denial of Service

17.

Which of the following is used to remotely manage and troubleshoot network devices?

a)

FTP

b)

HTTP

c)

Telnet

d)

SSH

18.

Which of the following is used to resolve IP addresses to MAC addresses?

a)

DHCP

b)

DNS

c)

ARP

d)

ICMP

19.

Which type of cable is commonly used to connect a computer to a switch?

a)

Crossover

b)

Straight-through

c)

Fiber optic

d)

Coaxial

20.

Which protocol provides reliable, ordered, and error-checked delivery of data between applications?

a)

UDP

b)

TCP

c)

IP

d)

ICMP

21.

Which of the following is the MOST common use of a web proxy?

a)

Bandwidth monitoring

b)

Content filtering

c)

Data encryption

d)

Network discovery

22.

Which type of wireless security protocol is considered the most secure?

a)

WEP

b)

WPA

c)

WPA2

d)

WPA3

23.

Which device is used to connect different network segments and manage traffic between them?

a)

Hub

b)

Bridge

c)

Repeater

d)

Modem

24.

Which of the following protocols is commonly used for VoIP services?

a)

HTTP

b)

SIP

c)

SMTP

d)

FTP

25.

Which of the following provides centralized authentication, authorization, and accounting?

a)

DNS

b)

DHCP

c)

RADIUS

d)

SNMP

26.

What is the function of a load balancer?

a)

Distributes network traffic across multiple servers

b)

Filters incoming and outgoing traffic

c)

Encrypts data transmissions

d)

Monitors network performance

27.

Which protocol is used for secure remote management and file transfer?

a)

HTTP

b)

FTP

c)

SSH

d)

SNMP

28.

Which of the following tools is used to capture and analyze network traffic?

a)

Netflow analyzer

b)

Port scanner

c)

Protocol analyzer

d)

Bandwidth monitor

29.

Which type of cable is immune to electromagnetic interference and can be used in long-distance data transmission?

a)

Cat5e

b)

Cat6

c)

Coaxial

d)

Fiber optic

30.

Which of the following tools is used to identify open ports and services on a network device?

a)

Packet sniffer

b)

Network analyzer

c)

Port scanner

d)

Bandwidth monitor

31.

Which type of network is characterized by the use of Z-wave or Zigbee?

a)

LAN

b)

WAN

c)

MAN

d)

PAN

32.

Which device is used to extend the range of a wireless network?

a)

Router

b)

Switch

c)

Access Point

d)

Hub

33.

Which of the following is used to provide high availability and redundancy in a network?

a)

NAT

b)

SNMP

c)

Failover clustering

d)

SMTP

34.

Which of the following is an example of a hybrid cloud?

a)

Using both public and private cloud resources

b)

Hosting all services in a private cloud

c)

Hosting all services in a public cloud

d)

Using cloud services only for backup

35.

What device typically acts as the default gateway for hosts in a network?

a)

Switch

b)

Router

c)

Hub

d)

Firewall

36.

Which of the following is used to define how data is formatted and transmitted over the network?

a)

Topology

b)

Protocol

c)

Gateway

d)

Subnet

37.

What type of attack exploits the trust relationship between a user's computer and a web server?

a)

SQL injection

b)

Cross-site scripting

c)

Cross-site request forgery

d)

DNS poisoning

38.

Which technology can be used to create multiple VLANs on a single switch?

a)

VPN

b)

NAT

c)

Trunking

d)

Port mirroring

39.

Which layer of the OSI model is responsible for error detection and correction?

a)

Data Link

b)

Network

c)

Transport

d)

Application

40.

A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard. There is a mix of devices that use 2.4 GHz and 5 GHz. Which of the following should the systems administrator select to meet this requirement?

a)

802.11ac

b)

802.11ax

c)

802.11g

d)

802.11n

41.

Which protocol is used to provide automatic IP configuration, including address, subnet mask, and default gateway?

a)

DNS

b)

DHCP

c)

ARP

d)

ICMP

42.

Which of the following is a benefit of using a VLAN?

a)

Reduces network latency

b)

Increases bandwidth

c)

Improves network security

d)

Simplifies network design

43.

What type of attack involves redirecting traffic from a legitimate website to a malicious one?

a)

Phishing

b)

DNS spoofing

c)

Man-in-the-middle

d)

Denial of Service

44.

What is the purpose of QoS (Quality of Service)?

a)

Encrypt network traffic

b)

Prioritize network traffic

c)

Monitor network performance

d)

Block unauthorized access

45.

Which of the following represents an IP address that can be used on the internet?

a)

192.168.1.1

b)

10.0.0.1

c)

172.16.0.1

d)

8.8.8.8

46.

Which command would you use to display the routing table on a Windows machine?

a)

ipconfig

b)

ifconfig

c)

netstat -r

d)

traceroute

47.

Which of the following IP addresses would be a valid host IP address on the subnet 192.168.1.0/24?

a)

192.168.1.0

b)

192.168.1.255

c)

192.168.1.1

d)

192.168.2.1

48.

Which of the following would be BEST to use to detect a MAC spoofing attack?

a)

Internet Control Message Protocol

b)

Reverse Address Resolution Protocol

c)

Dynamic Host Configuration Protocol

d)

Intrusion Detection System

49.

Which of the following is used to convert a private IP address to a public IP address?

a)

DNS

b)

DHCP

c)

NAT

d)

SNMP

50.

Which of the following is a characteristic of IPv6?

a)

32-bit address space

b)

Uses NAT

c)

128-bit address space

d)

Uses subnet masks

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