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web.groovymark@gmail.com
- November 21, 2024
Question 21
What does CISC stand for?
a) Complicated Instruction Set Computer
b) Complex Instruction Set Computer
c) Current Instruction Set Computer
d) Common Instruction Set Computer
Correct Answer: b) Complex Instruction Set Computer
Explanation: CISC refers to a type of microprocessor architecture designed to execute a wide array of instructions, improving performance for complex tasks.
Question 22
What is a key feature of RAID systems?
a) They consist of a single drive
b) They rely on software for data storage
c) They consist of two or more drives working in parallel
d) They are exclusively for SSDs
Correct Answer: c) They consist of two or more drives working in parallel
Explanation: RAID (Redundant Array of Independent Disks) configurations utilize multiple drives to improve data redundancy, performance, and reliability.
Question 23
What does RAID 1 do?
a) Duplicates data across two disks for redundancy
b) Stripes data across multiple disks for performance
c) Combines disks without redundancy
d) Uses a single disk for data storage
Correct Answer: a) Duplicates data across two disks for redundancy
Explanation: RAID 1 mirrors data on two disks, ensuring that if one disk fails, the data remains accessible on the other.
Question 24
What is RAID 0 characterized by?
a) Data duplication for safety
b) Data striping across multiple disks
c) High redundancy with parity data
d) Data stored on a single disk
Correct Answer: b) Data striping across multiple disks
Explanation: RAID 0 improves performance by distributing data across multiple disks but does not provide redundancy, meaning data is lost if one disk fails.
Question 25
What is the minimum number of drives required for RAID 5?
a) One
b) Two
c) Three
d) Four
Correct Answer: c) Three
Explanation: RAID 5 requires at least three drives to provide fault tolerance through parity data, allowing for data recovery if one drive fails
Question 26
What does RAID 6 do differently than RAID 5?
a) Requires only two disks
b) Writes parity data to two drives for enhanced fault tolerance
c) Does not use parity
d) Requires only one disk for operation
Correct Answer: b) Writes parity data to two drives for enhanced fault tolerance
Explanation: RAID 6 can withstand the failure of two drives simultaneously by storing parity information on two separate disks, providing additional data protection.
Question 27
What are nested RAID levels?
a) A single RAID configuration
b) Combining two different RAID types to gain the benefits of both
c) A method to enhance disk performance
d) A type of software RAID
Correct Answer: b) Combining two different RAID types to gain the benefits of both
Explanation: Nested RAID levels, such as RAID 0+1 or RAID 1+0, combine features from different RAID configurations to enhance performance and redundancy.
Question 28
What is the main purpose of a firewall in a network?
a) To provide faster internet connections
b) To block unauthorized access while permitting outward communication
c) To enhance data storage capacity
d) To manage system resources
Correct Answer: b) To block unauthorized access while permitting outward communication
Explanation: Firewalls are security devices designed to monitor and control incoming and outgoing network traffic based on predetermined security rules.
Question 29
What is the role of gateways in a network?
a) Connects two different network architectures
b) Acts as a simple switch
c) Provides internet access
d) Filters data packets
Correct Answer: a) Connects two different network architectures
Explanation: Gateways serve as access points that allow different networks to communicate with each other, facilitating data transfer and protocol translation.
Question 30
What is a bridge in networking?
a) A type of firewall
b) A device that filters traffic between segments based on MAC addresses
c) A method for data encryption
d) A server that provides authentication
Correct Answer: b) A device that filters traffic between segments based on MAC addresses
Explanation: Bridges operate at the data link layer to connect and filter traffic between different segments of a network.
Question 31
What does the transmission media in networking refer to?
a) The software used to connect devices
b) The radio waves or physical system that transports data
c) The devices that process data
d) The security protocols used
Correct Answer: b) The radio waves or physical system that transports data
Explanation: Transmission media encompasses all physical and wireless methods used to transmit data between devices in a network.
Question 32
What is the function of a network operating system (NOS)?
a) To run applications on individual computers
b) To manage the flow of data across a network
c) To provide graphical user interfaces
d) To enhance hardware performance
Correct Answer: b) To manage the flow of data across a network
Explanation: A network operating system oversees resource sharing and communication between computers within a network, ensuring security and efficient data flow.
Question 33
What topology connects devices with many redundant interconnections?
a) Star topology
b) Ring topology
c) Mesh topology
d) Bus topology
Correct Answer: c) Mesh topology
Explanation: In a mesh topology, devices are interconnected in a way that provides multiple paths for data transmission, enhancing reliability and fault tolerance.
Question 34
What is the primary characteristic of a star topology?
a) All devices are connected in a loop
b) One central node connects all other devices
c) A single cable connects all devices
d) No centralized connection exists
Correct Answer: b) One central node connects all other devices
Explanation: In a star topology, all devices connect to a central hub or switch, allowing for easier management and troubleshooting.
Question 35
What describes a ring topology?
a) Devices connected in a straight line
b) Devices connected in a loop where data flows in one direction
c) A decentralized connection structure
d) All devices connected to a central hub
Correct Answer: b) Devices connected in a loop where data flows in one direction
Explanation: Ring topology allows data to circulate around the loop, with each device receiving and passing on the data to the next device.
Question 36
What is the primary purpose of a router?
a) To connect devices within a single network
b) To transmit packets based on IP addresses
c) To serve as a firewall
d) To enhance data transfer rates
Correct Answer: b) To transmit packets based on IP addresses
Explanation: Routers determine the best path for data packets to travel across networks based on IP addresses, facilitating efficient data transfer.
Question 37
What is the primary role of a network switch?
a) To connect different networks
b) To examine the destination address and send frames to the corresponding devices
c) To provide internet access
d) To manage user authentication
Correct Answer: b) To examine the destination address and send frames to the corresponding devices
Explanation: Switches operate at the data link layer, directing data frames to the correct devices on a local network based on MAC addresses.
Question 38
What is the function of a repeater in a network?
a) To block unauthorized access
b) To receive and retransmit signals
c) To connect different types of networks
d) To manage user permissions
Correct Answer: b) To receive and retransmit signals
Explanation: Repeaters amplify signals to extend the range of data transmission over long distances in a network.
Question 39
What is the function of the TCP/IP protocol suite?
a) It allows devices to communicate over a network
b) It provides security features for data transmission
c) It manages hardware connections
d) It is used for graphical user interfaces
Correct Answer: a) It allows devices to communicate over a network
Explanation: The TCP/IP protocol suite is the foundational communication protocol for the internet, enabling devices to exchange data effectively.
Question 40
What protocol is used for sending packets with error-checking to ensure proper order?
a) UDP
b) FTP
c) TCP
d) ICMP
Correct Answer: c) TCP
Explanation: The Transmission Control Protocol (TCP) ensures reliable delivery of packets through error-checking and sequencing, maintaining data integrity during transmission.
