OA Exams

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  • November 18, 2024

Question 41

What is the purpose of RAID 10?

a) To combine the benefits of mirroring and striping for redundancy and performance
b) To assign IP addresses dynamically
c) To filter network traffic
d) To segment a network into VLANs

Correct Answer: a) To combine the benefits of mirroring and striping for redundancy and performance

Explanation: RAID 10 (also known as RAID 1+0) combines the benefits of RAID 1 (mirroring) and RAID 0 (striping), offering both redundancy and improved performance.

Question 42

What is the role of ARP (Address Resolution Protocol) in a network?

a) To resolve IP addresses to MAC addresses
b) To assign IP addresses dynamically
c) To filter network traffic
d) To encrypt data for secure transmission

Correct Answer: a) To resolve IP addresses to MAC addresses

Explanation: ARP maps an IP address to its corresponding MAC address, allowing devices on the same network to communicate directly.

Question 43

What is the function of a DNSSEC (DNS Security Extensions)?

a) To encrypt DNS requests
b) To provide digital signatures for authenticating DNS responses
c) To assign IP addresses dynamically
d) To route traffic between different networks

Correct Answer: b) To provide digital signatures for authenticating DNS responses

Explanation: DNSSEC adds a layer of security to DNS by providing digital signatures, ensuring the authenticity and integrity of DNS data.

Question 44

What does the acronym FTP stand for?

a) Fast Transmission Protocol
b) Fiber Transfer Protocol
c) File Transfer Protocol
d) Frame Transmission Process

Correct Answer: c) File Transfer Protocol

Explanation: FTP (File Transfer Protocol) is a network protocol used for transferring files between computers, commonly used for uploading and downloading data.

Question 45

What is a rogue access point in a wireless network?

a) A wireless device that assigns IP addresses dynamically
b) An unauthorized wireless access point installed without permission
c) A wireless device that amplifies network signals
d) A device used to route traffic between VLANs

Correct Answer: b) An unauthorized wireless access point installed without permission

Explanation: A rogue access point is an unauthorized wireless access point installed on a network, posing a security risk by providing unauthorized access to the network.

Question 46

What does the acronym WPA2 stand for in wireless security?

a) Wireless Protocol Authentication
b) Wi-Fi Protected Access 2
c) Wireless Private Access 2
d) Wide Area Protocol Authentication

Correct Answer: b) Wi-Fi Protected Access 2

Explanation: WPA2 (Wi-Fi Protected Access 2) is a security protocol developed by the Wi-Fi Alliance, providing strong encryption for securing wireless networks.

Question 47

What is the purpose of a server cluster in a network?

a) To assign dynamic IP addresses
b) To provide redundancy and load balancing for critical network services
c) To filter network traffic based on security policies
d) To encrypt data for secure transmission

Correct Answer: b) To provide redundancy and load balancing for critical network services

Explanation: A server cluster ensures high availability of services by distributing the load among multiple servers and providing failover in case of a server failure.

Question 48

What type of protocol is SNMP (Simple Network Management Protocol)?

a) A file transfer protocol
b) A network management protocol
c) A routing protocol
d) A wireless communication protocol

Correct Answer: b) A network management protocol

Explanation: SNMP is a protocol used to monitor and manage network devices, such as routers, switches, and servers, from a central management system.

Question 49

What does the term “latency” refer to in networking?

a) The loss of data packets during transmission
b) The delay in data transmission from source to destination
c) The amplification of network signals
d) The encryption of data for secure communication

Correct Answer: b) The delay in data transmission from source to destination

Explanation: Latency refers to the time delay between when data is sent from its source and when it is received at its destination, often measured in milliseconds.

Question 50

What is the role of a DHCP server in a network?

a) To assign dynamic IP addresses to devices
b) To filter network traffic based on security rules
c) To encrypt data transmissions
d) To route data between networks

Correct Answer: a) To assign dynamic IP addresses to devices

Explanation: A DHCP server dynamically assigns IP addresses to devices on a network, ensuring that each device has a unique address for communication.

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