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web.groovymark@gmail.com
- November 21, 2024
Question 21
What is the primary focus of non-functional requirements?
a) How a system operates
b) The appearance of the user interface
c) The specific features of a software product
d) User access levels
Correct Answer: a) How a system operates
Explanation: Non-functional requirements define the quality attributes of a system, such as performance, usability, reliability, and security.
Question 22
What is the purpose of TCP/IP?
a) To define hardware specifications
b) To manage user permissions
c) To establish communication protocols over the internet
d) To enhance data storage
Correct Answer: c) To establish communication protocols over the internet
Explanation: The TCP/IP protocol suite underpins internet communications by defining how data is packaged, transmitted, and received across networks.
Question 23
What is the function of the Transmission Control Protocol (TCP)?
a) To send data without error-checking
b) To ensure reliable data transmission with error-checking
c) To encrypt data packets
d) To manage email communications
Correct Answer: b) To ensure reliable data transmission with error-checking
Explanation: TCP provides reliable, ordered, and error-checked delivery of data packets, ensuring all packets are received correctly.
Question 24
What is the role of the Internet Protocol (IP)?
a) To establish secure connections
b) To assign IP addresses to devices
c) To manage local storage
d) To encrypt data transmissions
Correct Answer: b) To assign IP addresses to devices
Explanation: IP is responsible for addressing and routing packets of data between devices on a network, allowing them to communicate effectively.
Question 25
What does ICMP stand for, and what is its purpose?
a) Internet Control Message Protocol; used for sending error messages and operational information
b) Internet Connection Management Protocol; used for network traffic management
c) Internal Communication Management Protocol; used for software interaction
d) Internet Communication Message Protocol; used for email communication
Correct Answer: a) Internet Control Message Protocol; used for sending error messages and operational information
Explanation: ICMP facilitates network device communication by reporting errors and providing diagnostic functions.
Question 26
What is the primary purpose of the User Datagram Protocol (UDP)?
a) To provide reliable data delivery
b) To send packets quickly with minimal overhead
c) To ensure encrypted communications
d) To establish connections between two devices
Correct Answer: b) To send packets quickly with minimal overhead
Explanation: UDP is a connectionless protocol that allows for faster data transmission by omitting error-checking and other reliability mechanisms.
Question 27
What is the Address Resolution Protocol (ARP) used for?
a) To encrypt data
b) To determine the MAC address from an IP address
c) To assign IP addresses dynamically
d) To monitor network traffic
Correct Answer: b) To determine the MAC address from an IP address
Explanation: ARP translates IP addresses into MAC addresses, enabling data to be directed to the correct device within a local network.
Question 28
What does a magnetic hard drive consist of?
a) Flash memory chips
b) One or more metal magnetic disks
c) Solid-state components
d) Optical storage layers
Correct Answer: b) One or more metal magnetic disks
Explanation: Magnetic hard drives utilize spinning disks coated with magnetic material to read and write data using moving read/write heads.
Question 29
What is the purpose of a DNS (Domain Name System)?
a) To assign IP addresses to devices
b) To translate URLs to IP addresses
c) To manage email delivery
d) To secure network traffic
Correct Answer: b) To translate URLs to IP addresses
Explanation: DNS resolves human-readable domain names into machine-readable IP addresses, enabling browsers to locate websites.
Question 30
What does DHCP stand for, and what is its role?
a) Domain Host Configuration Protocol; it manages domain names
b) Dynamic Host Configuration Protocol; it assigns IP addresses to devices on a network
c) Dynamic Host Control Protocol; it secures network access
d) Data Handling Configuration Protocol; it organizes network data
Correct Answer: b) Dynamic Host Configuration Protocol; it assigns IP addresses to devices on a network
Explanation: DHCP automates the process of assigning IP addresses to devices within a network, simplifying network management.
Question 31
What is the main advantage of RAID 0?
a) Data redundancy
b) Improved read/write performance
c) Fault tolerance
d) Data encryption
Correct Answer: b) Improved read/write performance
Explanation: RAID 0 enhances performance by striping data across multiple disks, which allows for faster data access but does not provide redundancy.
Question 32
What type of RAID configuration duplicates data across two disks for redundancy?
a) RAID 0
b) RAID 1
c) RAID 5
d) RAID 10
Correct Answer: b) RAID 1
Explanation: RAID 1 mirrors data on two drives, ensuring that if one drive fails, the data remains safe on the other.
Question 33
What distinguishes RAID 5 from RAID 6?
a) RAID 5 uses two parity blocks; RAID 6 uses one
b) RAID 5 can tolerate one drive failure; RAID 6 can tolerate two
c) RAID 5 requires a minimum of two drives; RAID 6 requires three
d) RAID 5 does not use parity; RAID 6 does
Correct Answer: b) RAID 5 can tolerate one drive failure; RAID 6 can tolerate two
Explanation: RAID 5 provides fault tolerance with one parity block, while RAID 6 uses two parity blocks, allowing it to withstand the failure of two drives.
Question 34
What is the function of a network bridge?
a) To connect two different networks
b) To filter traffic between segments based on MAC addresses
c) To manage user authentication
d) To provide internet access
Correct Answer: b) To filter traffic between segments based on MAC addresses
Explanation: Bridges operate at the data link layer and are used to connect and filter traffic between different segments of a network.
Question 35
What topology is characterized by a central hub connecting all devices?
a) Mesh topology
b) Ring topology
c) Star topology
d) Bus topology
Correct Answer: c) Star topology
Explanation: In a star topology, all devices connect to a central hub or switch, allowing for easier management and troubleshooting.
Question 36
What is the role of a router in a network?
a) To connect devices within a single network
b) To transmit packets based on IP addresses
c) To manage user permissions
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 purpose of a firewall?
a) To allow all network traffic
b) To block unauthorized access while permitting outward communication
c) To increase network speed
d) To manage user permissions
Correct Answer: b) To block unauthorized access while permitting outward communication
Explanation: Firewalls protect networks by monitoring and controlling incoming and outgoing traffic based on predetermined security rules.
Question 38
What is a mesh topology?
a) A network layout with one central device
b) A layout where devices are connected in a loop
c) A network where every device is connected to every other device
d) A layout with a single trunk or backbone
Correct Answer: c) A network where every device is connected to every other device
Explanation: Mesh topology provides multiple pathways for data, enhancing redundancy and reliability in network communications.
Question 39
What type of cloud service model delivers hardware networking capabilities over the cloud?
a) Software as a Service (SaaS)
b) Platform as a Service (PaaS)
c) Infrastructure as a Service (IaaS)
d) Function as a Service (FaaS)
Correct Answer: c) Infrastructure as a Service (IaaS)
Explanation: IaaS provides virtualized computing resources over the internet, including servers, storage, and networking capabilities.
Question 40
What is the primary benefit of using a content delivery network (CDN)?
a) Faster data processing
b) Enhanced security
c) Reduced latency for users by distributing content closer to them
d) Simplified database management
Correct Answer: c) Reduced latency for users by distributing content closer to them
Explanation: CDNs cache content in multiple locations worldwide, allowing users to access data from the nearest server, which reduces loading times.
