Systems Administration Final Exam

Stateful inspection firewalls keep track of:

• The state of network connections traveling across it.

• The content of each packet's payload.

• The number of packets sent and received.

• The source and destination addresses of each packet.

Which type of attack involves overwhelming a network or service with excessive traffic?

• a) Phishing

• b) Man-in-the-middle

• c) Denial of Service (DoS)

• d) SQL Injection

A phishing attack is an attempt to:

• a) Overwhelm a network with traffic.

• b) Steal sensitive information by pretending to be a trustworthy entity.

• c) Inject malicious code into a website.

• d) Gain unauthorized access through brute force.

Which of the following best describes an internal zone in a firewall architecture?

• a) A segment that interfaces directly with the public internet.

• b) A highly restricted segment for trusted devices and sensitive data.

• c) A segment used to route traffic to external services.

• d) A buffer zone between internal and external networks.

What does the CIA triad stand for in cybersecurity?

• a) Confidentiality, Integrity, Availability

• b) Control, Intelligence, Authenticity

• c) Cybersecurity, Information, Access

• d) Confidentiality, Information, Assurance

Application-level gateways, or proxy firewalls, operate at which OSI layer?

• a) Layer 2 - Data Link

• b) Layer 3 - Network

• c) Layer 5 - Session

• d) Layer 7 - Application

What is the primary function of a packet-filtering firewall?

• a) To monitor and analyze traffic based on rules.

• b) To encrypt data for secure transmission.

• c) To provide VPN services.

• d) To scan and remove viruses from incoming packets.

Which of the following best describes malware?

• a) Software designed to protect against unauthorized access.

• b) Malicious software intended to damage or disrupt systems.

• c) A protocol for secure communication over a network.

• d) A firewall configuration method.

Which of the following best describes a firewall?

• a) A device that provides a secure connection to the internet.

• b) A system designed to prevent unauthorized access to or from a private network.

• c) A program that scans for malware and removes it from the system.

• d) A protocol used for encrypting data transmissions.

At which OSI layer do routers operate?

• a) Layer 2 - Data Link

• b) Layer 3 - Network

• c) Layer 4 - Transport

• d) Layer 5 - Session