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web.groovymark@gmail.com
- November 21, 2024
Question 21
What is the main benefit of using a content delivery network (CDN)?
a) Faster internet speeds
b) Reduced loading times by caching content closer to users
c) Increased security for web applications
d) Simplified website management
Correct Answer: b) Reduced loading times by caching content closer to users
Explanation: CDNs distribute content geographically to improve access speed and reduce latency for users accessing the data.
Question 22
What is the purpose of a VPN (Virtual Private Network)?
a) To create an encrypted connection over the internet
b) To manage user permissions
c) To monitor network traffic
d) To store backup data
Correct Answer: a) To create an encrypted connection over the internet
Explanation: VPNs provide secure connections over public networks, ensuring privacy and security for data transmission.
Question 23
What does the term “load balancing” refer to?
a) Storing data securely
b) Distributing network traffic across multiple servers
c) Backing up data regularly
d) Enhancing data encryption
Correct Answer: b) Distributing network traffic across multiple servers
Explanation: Load balancing improves resource utilization and application availability by evenly distributing incoming traffic across several servers.
Question 24
What is the primary function of a network firewall?
a) To boost network speed
b) To protect a network from unauthorized access
c) To store data securely
d) To manage user authentication
Correct Answer: b) To protect a network from unauthorized access
Explanation: Firewalls filter and monitor incoming and outgoing traffic, enforcing security policies to protect network resources.
Question 25
What is the purpose of using a caching server?
a) To store files permanently
b) To temporarily store frequently accessed data for quicker retrieval
c) To monitor network traffic
d) To encrypt data
Correct Answer: b) To temporarily store frequently accessed data for quicker retrieval
Explanation: Caching servers enhance performance by storing copies of frequently accessed data, reducing the need to fetch the same data repeatedly from slower storage.
Question 26
What is a characteristic of a peer-to-peer (P2P) network?
a) All nodes have equal privileges and can act as both clients and servers
b) It relies on a centralized server for resources
c) It is more secure than traditional networks
d) It is limited to wired connections
Correct Answer: a) All nodes have equal privileges and can act as both clients and servers
Explanation: In a P2P network, each participant can share resources directly with others, promoting collaboration without the need for a central server.
Question 27
What does the term “multithreading” refer to?
a) Running multiple processes on a single core
b) Allowing different parts of a single program to run concurrently
c) Using multiple computers to perform tasks
d) Managing network traffic
Correct Answer: b) Allowing different parts of a single program to run concurrently
Explanation: Multithreading improves the performance of applications by enabling them to execute multiple threads simultaneously, maximizing CPU usage.
Question 28
What is the role of an API (Application Programming Interface)?
a) To manage user permissions
b) To facilitate communication between different software applications
c) To enhance network security
d) To store data
Correct Answer: b) To facilitate communication between different software applications
Explanation: APIs allow different software systems to interact with each other, enabling integration and functionality sharing.
Question 29
a) To increase network speed
b) To enhance security by isolating different parts of a network
c) To manage user permissions
d) To reduce costs
a) T-test
b) Chi-square test
c) ANOVA
d) Regression analysis
Correct Answer: b) To enhance security by isolating different parts of a network
Explanation: Network segmentation improves security and performance by dividing a network into smaller, isolated segments to control access and reduce congestion.
Question 30
What is the function of a network management system (NMS)?
a) To provide internet access
b) To monitor and manage network performance and security
c) To store data
d) To manage user accounts
Correct Answer: b) To monitor and manage network performance and security
Explanation: NMS tools help administrators oversee network resources, performance, and security, enabling proactive management and troubleshooting.
Question 31
What is the purpose of a backup system?
a) To enhance network security
b) To protect against data loss
c) To manage user permissions
d) To increase data transfer speeds
Correct Answer: b) To protect against data loss
Explanation: Backup systems create copies of data to safeguard against loss due to hardware failure, data corruption, or accidental deletion.
Question 32
What does the term “data integrity” refer to?
a) The speed of data transmission
b) The accuracy and consistency of stored data
c) The capacity of storage devices
d) The method of data encryption
Correct Answer: b) The accuracy and consistency of stored data
Explanation: Data integrity ensures that data remains accurate, reliable, and consistent throughout its lifecycle, protecting against corruption and unauthorized changes.
Question 33
What is a typical use case for a firewall?
a) To encrypt data in transit
b) To filter incoming and outgoing network traffic based on security rules
c) To store sensitive data
d) To manage user permissions
Correct Answer: b) To filter incoming and outgoing network traffic based on security rules
Explanation: Firewalls monitor and control network traffic, ensuring that only authorized traffic is allowed while blocking potential threats.
Question 34
What is the purpose of a network topology diagram?
a) To display network security measures
b) To show the physical and logical arrangement of devices in a network
c) To monitor network performance
d) To manage user accounts
Correct Answer: b) To show the physical and logical arrangement of devices in a network
Explanation: A network topology diagram visually represents the connections and layout of a network, aiding in planning and troubleshooting.
Question 35
What does the acronym “ISP” stand for?
a) Internet Service Provider
b) Internal Security Protocol
c) Internet Security Program
d) Integrated Service Provider
Correct Answer: a) Internet Service Provider
Explanation: An ISP is a company that provides individuals and organizations access to the internet and other related services.
Question 36
What is the role of a DHCP server?
a) To assign IP addresses to devices on a network
b) To manage user accounts
c) To monitor network traffic
d) To encrypt data
Correct Answer: a) To assign IP addresses to devices on a network
Explanation: DHCP servers automate the assignment of IP addresses, simplifying network configuration and management.
Question 37
What is the main purpose of a DNS server?
a) To block unauthorized access
b) To translate domain names into IP addresses
c) To manage network traffic
d) To monitor server performance
Correct Answer: b) To translate domain names into IP addresses
Explanation: DNS servers facilitate internet navigation by converting human-readable domain names into numerical IP addresses for devices.
Question 38
What is a VPN primarily used for?
a) To create secure connections over the internet
b) To manage user permissions
c) To store backup data
d) To enhance data transfer speeds
Correct Answer: a) To create secure connections over the internet
Explanation: VPNs establish encrypted connections over public networks, ensuring privacy and security for data transmission.
Question 39
What is the primary function of network segmentation?
a) To increase network speed
b) To enhance security by isolating different network segments
c) To simplify network management
d) To reduce costs
Correct Answer: b) To enhance security by isolating different network segments
Explanation: Network segmentation improves security and performance by dividing a network into smaller, isolated segments to control access and reduce congestion.
Question 40
What is a characteristic of a virtual machine (VM)?
a) It requires physical hardware to operate
b) It runs its own operating system and applications
c) It cannot communicate with other devices
d) It is less secure than a physical machine
Correct Answer: b) It runs its own operating system and applications
Explanation: Virtual machines emulate physical computers, allowing multiple OS environments to run on a single hardware platform.
