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Networking and Security Concepts Worksheet

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What are the two basic methods humans typically use to communicate?

a)

Speaking and writing

b)

Texting and emailing

c)

Verbal and non-verbal

d)

Digital and analog

2.

What is a MAC address?

a)

A temporary identifier for network devices

b)

A unique identifier hardcoded by the manufacturer

c)

An Internet Protocol address

d)

A changeable address assigned by network administrators

3.

Which of the following best describes a Network Interface Card (NIC)?

a)

A software program that manages network connections

b)

A component that holds the MAC address of the device

c)

A protocol for identifying devices on a network

d)

A type of IP address

4.

What format is used for IPv4 addresses?

a)

Hexadecimal digits separated by colons

b)

Binary digits separated by periods

c)

Four decimal numbers separated by dots

d)

Six hexadecimal digits separated by hyphens

5.

What does ARP stand for?

a)

Address Resolution Protocol

b)

Advanced Router Protocol

c)

Automated Response Process

d)

Access Request Protocol

6.

What is the purpose of ARP in a network?

a)

To assign IP addresses to devices

b)

To find the MAC address associated with an IP address

c)

To encrypt data between devices

d)

To establish a secure connection between devices

7.

What is a DoS attack?

a)

An attack that steals sensitive information

b)

An attack that encrypts data for ransom

c)

An attack that prevents a system from functioning normally

d)

An attack that creates fake user accounts

8.

In a DDoS attack, what is a "zombie"?

a)

A malicious program that deletes system files

b)

A computer system unaware it is involved in the attack

c)

A fake user account created by hackers

d)

A security program that detects network threats

9.

What is a "SYN Flood" attack?

a)

An attack that overloads a system with authentication requests

b)

An attack that misuses the 3-way handshake

c)

An attack that floods email servers with spam

d)

An attack that targets wireless networks

10.

What happens during a SYN Flood attack?

a)

The attacker completes multiple handshakes to overwhelm the server

b)

The attacker doesn't send the final ACK, leaving the victim waiting

c)

The attacker sends malicious code in the SYN packet

d)

The attacker changes the victim's MAC address

11.

What is an "unintentional DoS"?

a)

When a digital resource becomes suddenly popular and can't handle demand

b)

When a server is accidentally shut down by an administrator

c)

When a network cable is accidentally disconnected

d)

When a software update causes system failures

12.

What is a "permanent DoS"?

a)

A digital attack that permanently disables software

b)

A physical attack resulting in damage to digital resources

c)

A virus that cannot be removed from a system

d)

An attack that permanently changes network configurations

13.

What is a "botnet" in the context of DDoS attacks?

a)

A network of security programs

b)

A collection of automated testing tools

c)

A network of compromised computers controlled by an attacker

d)

A group of network administrators

14.

Which of the following is a step organizations can take to mitigate SYN Flood attacks?

a)

Increase the time-out value for connections

b)

Reduce the number of available connections

c)

Reduce the time-out value for connections

d)

Increase the size of data packets

15.

Why might networks block ping packets from external sources?

a)

Ping packets are too large and consume bandwidth

b)

Ping has many uses for reconnaissance and attacks

c)

Ping packets are incompatible with modern networks

d)

Ping ONLY creates security vulnerabilities in firewalls

16.

What is the format of a MAC address?

a)

Four decimal numbers separated by dots

b)

12 hexadecimal digits, often separated by colons or hyphens

c)

A series of binary digits

d)

8 alphanumeric characters

17.

What is the main difference between a MAC address and an IP address?

a)

MAC addresses are temporary, while IP addresses are permanent

b)

MAC addresses are assigned by the network, while IP addresses are hardcoded

c)

MAC addresses are physical addresses hardcoded by manufacturers, while IP addresses are logical and changeable

d)

MAC addresses are used only for local networks, while IP addresses are used only for the internet

18.

What is Project Shield designed to protect against?

a)

Virus infections

b)

Data breaches

c)

DDoS attacks

d)

Physical security threats

19.

Which devices were used in a major 2016 DDoS attack that significantly slowed the internet?

a)

Smartphones and tablets

b)

Corporate servers and workstations

c)

IoT devices like DVRs, nanny cams, and thermostats

d)

Government infrastructure systems

20.

What happens when a device broadcasts an ARP request on a network?

a)

All devices respond with their IP addresses

b)

The device with the requested IP address responds with its MAC address

c)

The network router assigns a new IP address

d)

All devices update their routing tables