#1
What is the primary function of a router in a network?
To connect multiple devices within the same local network
To convert digital data into analog signals for transmission over phone lines
To forward data packets between computer networks
To provide centralized storage for network data
#2
What does TCP stand for in computer networking?
Transmission Control Protocol
Terminal Control Protocol
Transmission Configuration Protocol
Transport Configuration Protocol
#3
Which protocol is commonly used for secure communication over a network?
#4
What is the purpose of DNS (Domain Name System) in computer networks?
To encrypt data transmitted over the network
To convert domain names into IP addresses
To authenticate users accessing the network
To manage network traffic and prioritize packets
#5
Which networking device operates at Layer 2 of the OSI model?
Router
Switch
Firewall
Gateway
#6
What is the purpose of a DNS server in networking?
To convert domain names to IP addresses
To encrypt data transmitted over the network
To assign IP addresses dynamically
To prevent unauthorized access to the network
#7
Which network topology connects each device to a central hub or switch?
Bus topology
Ring topology
Star topology
Mesh topology
#8
Which of the following devices operates at the Physical layer of the OSI model?
#9
Which of the following is NOT a valid IPv4 address?
192.168.0.256
10.0.0.1
172.16.0.0
255.255.255.255
#10
What is the main advantage of using a star topology in networking?
It requires less cabling compared to other topologies
It offers high scalability and easy expansion
It provides better security against data interception
It allows for decentralized control of the network
#11
What is the maximum data rate of a Gigabit Ethernet connection?
100 Mbps
1 Gbps
10 Gbps
100 Gbps
#12
Which layer of the OSI model is responsible for establishing, maintaining, and terminating connections?
Transport Layer
Data Link Layer
Session Layer
Presentation Layer
#13
Which of the following protocols is used for securely accessing remote systems over a network?
#14
What is the maximum data rate of the 802.11ac Wi-Fi standard?
54 Mbps
600 Mbps
1 Gbps
3.5 Gbps
#15
What is the purpose of a subnet mask in networking?
To determine the network portion of an IP address
To encrypt data transmitted over the network
To assign IP addresses dynamically
To prevent unauthorized access to the network
#16
Which of the following is a characteristic of a full-duplex communication?
Data can be transmitted in both directions simultaneously
Data can be transmitted in only one direction at a time
Data transmission is limited to one direction
Data transmission is not possible
#17
Which of the following is NOT a valid MAC address format?
00:1A:2B:3C:4D:5E
00-1A-2B-3C-4D-5E
001A2B3C4D5E
001A:2B:3C:4D:5E
#18
What does ICMP (Internet Control Message Protocol) primarily deal with in networking?
Routing information
Error and control messages
Encapsulation and decapsulation
Data transmission speed