Free CTA Network Security & Troubleshooting Questions and Answers

Question 1

What is the main goal of network security?

Accepted Answer

Protect networks from unauthorized access

Answer

Increase system downtime.

Answer

Expand user privileges.

Answer

Disable encryption protocols.

Question 2

Which device is used to block unauthorized access to a network?

Accepted Answer

Firewall

Answer

Router.

Answer

Switch.

Answer

Modem.

Question 3

What is the role of encryption in network security?

Accepted Answer

Converts data into unreadable format for security

Answer

Deletes old user accounts.

Answer

Speeds up network traffic.

Answer

Eliminates the need for passwords.

Question 4

Which attack involves overwhelming a network with excessive traffic?

Accepted Answer

Distributed Denial of Service (DDoS) attack

Answer

Man-in-the-middle attack.

Answer

Phishing.

Answer

Social engineering.

Question 5

Which protocol is commonly used for secure remote login?

Accepted Answer

SSH

Answer

FTP.

Answer

HTTP.

Answer

Telnet.

Question 6

What tool is commonly used to diagnose network connectivity issues?

Accepted Answer

Ping

Answer

Traceroute.

Answer

WHOIS lookup.

Answer

DNS zone transfer.

Question 7

What is the function of a VPN in network security?

Accepted Answer

Provide a secure encrypted tunnel for data

Answer

Increase internet bandwidth.

Answer

Reduce encryption needs.

Answer

Host public websites.

Question 8

Which software detects and removes malicious software?

Accepted Answer

Antivirus software

Answer

Firewall configuration tool.

Answer

Email client.

Answer

Content management system.

Question 9

What step should be taken if a network is suspected to be compromised?

Accepted Answer

Disconnect the affected system from the network

Answer

Run a backup immediately.

Answer

Upgrade the operating system.

Answer

Replace the network cables.