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web.groovymark@gmail.com
- December 3, 2024
Question 21
Which command can be used on a Linux system to display active network interfaces and their configurations?
a) ipconfig
b) ping
c) ifconfig
d) nslookup
Correct Answer: c) ifconfig
Explanation: The ifconfig command is used to display and configure network interfaces on Linux systems.
Question 22
What is the purpose of a proxy server in a network?
a) To manage IP addresses
b) To translate domain names into IP addresses
c) To act as an intermediary between clients and servers
d) To encrypt network traffic
Correct Answer: c) To act as an intermediary between clients and servers
Explanation: Proxy servers act as intermediaries between clients and external servers, improving security and caching content.
Question 23
Which of the following protocols is used to resolve domain names into IP addresses?
a) DHCP
b) ARP
c) DNS
d) FTP
Correct Answer: c) DNS
Explanation: DNS (Domain Name System) resolves domain names into IP addresses, allowing users to connect to websites using human-readable names.
Question 24
A network administrator wants to block all traffic from an unauthorized IP address. Which feature should be used on the firewall?
a) MAC filtering
b) IP filtering
c) NAT
d) Port forwarding
Correct Answer: b) IP filtering
Explanation: IP filtering can block or allow traffic from specific IP addresses based on firewall rules.
Question 25
Which technology is commonly used to prioritize network traffic, ensuring that critical applications receive more bandwidth?
a) DHCP
b) NAT
c) QoS
d) DNS
Correct Answer: c) QoS
Explanation: QoS (Quality of Service) is used to prioritize network traffic, ensuring that critical applications receive the necessary bandwidth.
Question 26
Which command-line tool is used to test connectivity between devices by sending ICMP echo requests?
a) tracert
b) ping
c) netstat
d) ipconfig
Correct Answer: b) ping
Explanation: The ping command sends ICMP echo requests to test connectivity between devices on a network.
Question 27
What is the default port number for HTTPS traffic?
a) 21
b) 80
c) 443
d) 53
Correct Answer: c) 443
Explanation: HTTPS (Hypertext Transfer Protocol Secure) traffic uses port 443 by default for encrypted web communication.
Question 28
Which of the following protocols is used for network time synchronization?
a) SNMP
b) SMTP
c) NTP
d) DHCP
Correct Answer: c) NTP
Explanation: NTP (Network Time Protocol) is used to synchronize the clocks of computers and devices on a network.
Question 29
A technician is asked to troubleshoot a network issue where multiple devices are unable to communicate with each other. Which tool can be used to trace the path that packets take to a destination?
a) ping
b) tracert
c) ipconfig
d) nslookup
Correct Answer: b) tracert
Explanation: The tracert command is used to trace the route that packets take from a source to a destination.
Question 30
Which of the following is a characteristic of TCP but not UDP?
a) Connection-oriented
b) Fast transmission
c) No flow control
d) Stateless
Correct Answer: a) Connection-oriented
Explanation: TCP (Transmission Control Protocol) is connection-oriented, meaning it establishes a connection before transmitting data.
Question 31
Which network device is used to convert analog signals into digital signals for data transmission?
a) Router
b) Switch
c) Modem
d) Hub
Correct Answer: c) Modem
Explanation: A modem converts analog signals into digital signals, enabling data transmission over phone lines or cable.
Question 32
What is the default subnet mask for a Class C IP address?
a) 255.0.0.0
b) 255.255.255.0
c) 255.255.0.0
d) 255.255.255.255
Correct Answer: b) 255.255.255.0
Explanation: The default subnet mask for a Class C IP address is 255.255.255.0, allowing for up to 254 hosts on the network.
Question 33
Which of the following is an example of a private IP address?
a) 172.16.0.1
b) 192.169.1.1
c) 8.8.8.8
d) 224.0.0.1
Correct Answer: a) 172.16.0.1
Explanation: 172.16.0.1 is part of the private IP address range, which is used for internal networks.
Question 34
What type of cable is required to connect two switches without the use of a hub or switch?
a) Straight-through
b) Crossover
c) Coaxial
d) Fiber
Correct Answer: b) Crossover
Explanation: A crossover cable is required to connect two network devices, such as switches, directly without using a hub or another switch.
Question 35
What protocol is used to automatically assign IP addresses within a network?
a) FTP
b) DHCP
c) DNS
d) ICMP
Correct Answer: b) DHCP
Explanation: DHCP (Dynamic Host Configuration Protocol) is used to automatically assign IP addresses and other configuration details to devices on a network.
Question 36
What is the primary purpose of a router in a network?
a) To manage IP addresses
b) To assign MAC addresses
c) To route traffic between different networks
d) To filter incoming packets
Correct Answer: c) To route traffic between different networks
Explanation: Routers are responsible for forwarding packets between different networks and determining the best path for data to travel.
Question 37
Which protocol is used to manage and monitor network devices?
a) FTP
b) SMTP
c) SNMP
d) HTTP
Correct Answer: c) SNMP
Explanation: SNMP (Simple Network Management Protocol) is used to manage and monitor devices on a network.
Question 38
Which command can be used to display the MAC address of a network interface on a Windows machine?
a) ipconfig /all
b) netstat
c) nslookup
d) tracert
Correct Answer: a) ipconfig /all
Explanation: The ipconfig /all command displays detailed information about the network interfaces, including the MAC address.
Question 39
What is the primary purpose of a VLAN in a network?
a) To extend the physical network
b) To separate network traffic into logical groups
c) To encrypt network traffic
d) To route traffic between different networks
Correct Answer: b) To separate network traffic into logical groups
Explanation: VLANs (Virtual Local Area Networks) are used to logically separate network traffic, even on the same physical network.
Question 40
Which of the following IP addresses is reserved for private network use?
a) 172.15.0.1
b) 192.168.1.100
c) 224.0.0.1
d) 10.0.0.1
Correct Answer: b) 192.168.1.100
Explanation: 192.168.1.100 is a private IP address, commonly used in local networks for internal communication.
