CCST Network Security & Best Practices

Question 1

What is the function of a firewall?

Accepted Answer

Control traffic

Answer

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Its primary function is to establish a protective barrier between a trusted internal network and untrusted external networks, such as the internet. By filtering traffic, firewalls prevent unauthorized access and protect against various malicious attacks.

Question 2

What is a strong password characteristic?

Accepted Answer

Letters, numbers, symbols

Answer

A strong password is characterized by its complexity and length, making it significantly more difficult to guess or crack. It typically incorporates a diverse combination of uppercase and lowercase letters, numbers, and special symbols. This variety increases the password's entropy, thereby substantially enhancing its security against brute-force attacks.

Question 3

Why update firmware regularly?

Accepted Answer

Patch vulnerabilities

Answer

Regularly updating firmware, which is the embedded software on hardware devices, is critical for maintaining robust network security and optimal performance. These updates frequently include patches for newly discovered security vulnerabilities, bug fixes, and sometimes performance enhancements or new features. Neglecting firmware updates can leave devices susceptible to exploits and compromise network integrity.

Question 4

What is network segmentation?

Accepted Answer

Divide network

Answer

Network segmentation is an architectural practice that involves dividing a computer network into multiple smaller, isolated network segments or subnets. This strategy significantly enhances security by limiting the lateral movement of threats within the network. It also improves network performance by reducing broadcast domains and provides more granular control over network traffic flow.

Question 5

What is phishing?

Accepted Answer

Fraud for info

Answer

Phishing is a deceptive form of social engineering attack where malicious actors attempt to trick individuals into revealing sensitive information, such as usernames, passwords, and credit card details. Attackers typically masquerade as a trustworthy entity in electronic communications, often through fraudulent emails, messages, or websites, to illicitly obtain personal data.

(CCST) Cisco Certified Support Technician Networking Practice Test

(CCST) Cisco Certified Support Technician Networking Practice Test

CCST Network Security & Best Practices