What does the output of the port scan indicate about the system?

• The system has no listening ports.

• The system has many listening ports.

• The system is completely secure.

• The system has no vulnerabilities.

Answer explanation

The output of the port scan indicates that the system has many listening ports, which can potentially pose security risks due to the increased attack surface.

What is the purpose of using a port scanner?

• To identify open, closed, and listening ports.

• To close all ports on a system.

• To increase the bandwidth of a network.

• To install new software on a system.

Answer explanation

To identify open, closed, and listening ports.

Why should a quality scanner be used for better security testing?

• To reduce the cost of security testing over time

• To ensure comprehensive vulnerability detection and coverage

• To speed up the testing process by avoiding manual checks

• To comply with international data protection regulations

Answer explanation

To ensure comprehensive vulnerability detection and coverage

What is the primary use of the iperf tool?

• To scan for open ports.

• To measure the maximum achievable bandwidth.

• To install network drivers.

• To monitor network traffic.

Answer explanation

To measure the maximum achievable bandwidth.

What type of software is iperf?

• Antivirus software

• Network performance testing tool

• Data encryption software

• Graphic design software

Answer explanation

iperf is a network performance testing tool, used to measure the maximum network bandwidth between two endpoints. It is not antivirus, data encryption, or graphic design software.

What is NetFlow Analyzer primarily used for?

• To scan for IP addresses and related information

• To emulate a computer terminal

• To collect IP network traffic data

• To send files between servers

Answer explanation

NetFlow Analyzer is primarily used to collect IP network traffic data, allowing for analysis and monitoring of network performance and security.

Which port does TFTP server use by default?

• 23

• 69

• 2055

• 80

Answer explanation

TFTP server uses port 69 by default for communication.

What is a terminal emulator?

• A tool to scan for IP addresses

• A software program that emulates a computer terminal

• A protocol used for network flow analysis

• A server used to send files between servers

Answer explanation

A terminal emulator is a software program that emulates a computer terminal, allowing users to access a command-line interface on a computer.

Which port is most commonly used by NetFlow?

• 69

• 23

• 2055

• 80

Answer explanation

NetFlow most commonly uses port 2055 for communication and data transfer.

What can an IP scanner be used for?

• To emulate a computer terminal

• To collect IP network traffic data

• To scan available ports and discover devices

• To send files between servers

Answer explanation

An IP scanner can be used to scan available ports and discover devices on a network, allowing for network mapping and security assessments.