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web.groovymark@gmail.com
- November 18, 2024
Question 41
What does the “hop count” refer to in routing?
a) The number of devices a packet passes through before reaching its destination
b) The amount of time it takes for data to be transmitted across a network
c) The number of packets transmitted within a time frame
d) The frequency of network collisions in a broadcast domain
Correct Answer: a) The number of devices a packet passes through before reaching its destination
Explanation: Hop count refers to the number of intermediate devices, such as routers, that a packet must pass through before reaching its destination.
Question 42
What does the acronym VLAN stand for?
a) Virtual Layer Access Network
b) Virtual Local Area Network
c) Verified LAN
d) Virtualized Local Area Network
Correct Answer: b) Virtual Local Area Network
Explanation: VLAN stands for Virtual Local Area Network, a logical network that allows devices in different physical locations to be grouped together for better management and security.
Question 43
What is the primary function of a bridge in a network?
a) To amplify weak signals
b) To connect two network segments and reduce collisions
c) To assign IP addresses dynamically
d) To encrypt data traffic
Correct Answer: b) To connect two network segments and reduce collisions
Explanation: A bridge connects two network segments, reducing collisions and improving traffic flow by filtering traffic based on MAC addresses.
Question 44
What is an example of a layer 3 device in the OSI model?
a) Switch
b) Router
c) Hub
d) Repeater
Correct Answer: b) Router
Explanation: A router is a Layer 3 device that makes decisions about where to forward data packets based on their IP addresses, allowing communication between different networks.
Question 45
What is the main purpose of a backup power system in networking?
a) To provide power in the event of an electrical failure
b) To assign dynamic IP addresses
c) To amplify weak signals in a network
d) To route traffic between networks
Correct Answer: a) To provide power in the event of an electrical failure
Explanation: A backup power system, such as a UPS (Uninterruptible Power Supply), ensures that critical network devices remain powered during an electrical failure.
Question 46
What does a subnet mask do in networking?
a) Identifies which portion of an IP address is the network part and which is the host part
b) Encrypts data transmissions for secure communication
c) Filters traffic based on predefined security rules
d) Amplifies network signals over long distances
Correct Answer: a) Identifies which portion of an IP address is the network part and which is the host part
Explanation: A subnet mask helps divide an IP address into a network portion and a host portion, determining which devices are part of the same subnet.
Question 47
What does the acronym NAT stand for in networking?
a) Network Address Transfer
b) Network Access Transport
c) Network Address Translation
d) Network Amplification Technology
Correct Answer: c) Network Address Translation
Explanation: NAT (Network Address Translation) allows multiple devices on a local network to share a single public IP address when accessing the internet.
Question 48
What is a primary function of an IDS (Intrusion Detection System)?
a) To assign IP addresses to devices on a network
b) To detect unauthorized access or malicious activity on a network
c) To amplify weak signals in a network
d) To route traffic between different networks
Correct Answer: b) To detect unauthorized access or malicious activity on a network
Explanation: An Intrusion Detection System (IDS) monitors network traffic for suspicious or malicious activity, alerting administrators if a potential security breach is detected.
Question 49
Which protocol is used for secure file transfers over a network?
a) FTP
b) HTTP
c) SFTP
d) IMAP
Correct Answer: c) SFTP
Explanation: SFTP (Secure File Transfer Protocol) provides a secure method of transferring files over a network by encrypting both the commands and the data.
Question 50
What is the purpose of a trunk line in a network?
a) To amplify weak signals
b) To connect multiple VLANs over a single physical link
c) To provide dynamic IP addressing
d) To encrypt wireless communications
Correct Answer: b) To connect multiple VLANs over a single physical link
Explanation: A trunk line is used to connect multiple VLANs over a single network link, allowing traffic from different VLANs to pass between switches.
