EmSAT Computer Networks Mock Test 2024 (Questions Answers)

EmSAT Computer Networks Mock Test 2024 (Questions Answers): This EmSAT Computer Networks Mock test is a comprehensive online assessment designed to evaluate a student’s knowledge and understanding of computer networks. The test is specifically tailored to measure the student’s grasp of different concepts, protocols, and technologies that are commonly used in computer networking.

The test is structured in a way that it covers various topics in computer networks, such as network architecture, network protocols, network security, and wireless networking. The questions in the test are carefully curated to assess the student’s ability to solve problems related to these topics. Additionally, check EmSAT Computer Science Achieve Mock Tests.

EmSAT Computer Networks Mock Test

The EmSAT Computer Networks Mock test is designed to simulate the actual EmSAT exam, so students can get a feel for the types of questions they will encounter. The test is timed, so students need to think critically and quickly to complete the test within the allotted time.

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EmSAT Computer Science Mock Test
Section 2: Computer Networks
Total Questions: 50
Time Limit: 60 Minutes

1 / 50

1) What protocol operates in the transport layer of a network?

A) TCP

B) IP

C) Ethernet

D) HTTP

2 / 50

2) What protocol operates in the physical layer of a network?

A) TCP

B) IP

C) Ethernet

D) HTTP

3 / 50

3) What are protocols in a network?

A) Standards for communication between devices in a network

B) Devices that connect networks together

C) Devices that connect devices within a network together

D) Standards for the physical components of a network

4 / 50

4) How is communication over networks broken down into different layers?

A) Into the physical layer, data link layer, and application layer

B) Into the physical layer, transport layer, and application layer

C) Into the physical layer, network layer, and application layer

D) Into the physical layer, transport layer, and network layer

5 / 50

5) How are tasks allocated between computers in the peer-to-peer model?

A) The server performs all tasks and clients receive the results

B) Clients and servers share tasks equally

C) Clients perform all tasks and servers receive the results

D) Tasks are allocated based on the capabilities of each device

6 / 50

6) How are tasks allocated between computers in the client-server model?

A) The server performs all tasks and clients receive the results

B) Clients and servers share tasks equally

C) Clients perform all tasks and servers receive the results

D) Tasks are allocated based on the capabilities of each device

7 / 50

7) What is the peer-to-peer model in a network?

A) A model where all devices in a network are equal and share resources

B) A model where devices in a network are organized into servers and clients

C) A model where devices in a network are connected in a ring topology

D) A model where devices in a network are connected in a mesh topology

8 / 50

8) What is the client-server model in a network?

A) A model where all devices in a network are equal and share resources

B) A model where devices in a network are organized into servers and clients

C) A model where devices in a network are connected in a ring topology

D) A model where devices in a network are connected in a mesh topology

9 / 50

9) What is the role of an operating system (OS) in a network?

A) To control the operation of a network

B) To connect a network to the internet

C) To connect multiple devices within a network together

D) To allow a device to connect to a network

10 / 50

10) What is the role of a NIC in a network?

A) To connect multiple networks together

B) To connect a network to the internet

C) To connect multiple devices within a network together

D) To allow a device to connect to a network

11 / 50

11) What is a switch in a network?

A) A device that connects multiple networks together

B) A device that connects a network to the internet

C) A device that connects multiple devices within a network together

D) A device that controls the flow of data between networks

12 / 50

12) What is the best topology for a network that requires a high level of security and privacy?

A) Bus topology

B) Star topology

C) Ring topology

D) Mesh topology

13 / 50

13) What is the best topology for a network with heavy traffic and high bandwidth requirements?

A) Bus topology

B) Star topology

C) Ring topology

D) Mesh topology

14 / 50

14) What is the best topology for a large office with 1000 computers?

A) Bus topology

B) Star topology

C) Ring topology

D) Mesh topology

15 / 50

15) What is the best topology for a small office with ten computers?

A) Bus topology

B) Star topology

C) Ring topology

D) Mesh topology

16 / 50

16) What is a mesh topology in a network?

A) All devices are connected to a central hub or switch

B) Devices are connected to each other in a linear fashion

C) Devices are connected in a circular fashion

D) Devices are connected in a mesh fashion

17 / 50

17) What is a ring topology in a network?

A) All devices are connected to a central hub or switch

B) Devices are connected to each other in a linear fashion

C) Devices are connected in a circular fashion

D) Devices are connected in a mesh fashion

18 / 50

18) What is a star topology in a network?

A) All devices are connected to a central hub or switch

B) Devices are connected to each other in a linear fashion

C) Devices are connected in a circular fashion

D) Devices are connected in a mesh fashion

19 / 50

19) What is a bus topology in a network?

A) All devices are connected to a central hub or switch

B) Devices are connected to each other in a linear fashion

C) Devices are connected in a circular fashion

D) Devices are connected in a mesh fashion

20 / 50

20) Which of the following is an example of a top-down design approach to network design?

A) Starting with the individual components and building up to the overall network

B) Starting with the overall network and breaking it down into individual components

C) Starting with the physical layout of the network and building the components around it

D) Starting with the software used in the network and building the hardware around it

21 / 50

21) What is the purpose of DNS in a network?

A) To convert IP addresses to domain names

B) To encrypt data packets for secure transfer

C) To provide wireless access to the network

D) To compress data packets to reduce file size

22 / 50

22) What is the difference between a unicast, multicast, and broadcast transmission in a network?

A) Unicast is a one-to-many transmission, multicast is a one-to-one transmission, and broadcast is a one-to-all transmission

B) Unicast is a one-to-one transmission, multicast is a one-to-many transmission, and broadcast is a one-to-all transmission

C) Unicast is a many-to-one transmission, multicast is a one-to-one transmission, and broadcast is a one-to-many transmission

D) Unicast is a one-to-all transmission, multicast is a one-to-many transmission, and broadcast is a one-to-one transmission

23 / 50

23) What is the difference between a protocol and a standard in networking?

A) A protocol is a set of rules for communication while a standard is a physical component of the network

B) A protocol is a physical component of the network while a standard is a set of rules for communication

C) A protocol specifies how data is transmitted and received while a standard defines the format and requirements for communication

D) A protocol is used in wired networks while a standard is used in wireless networks

24 / 50

24) What is the purpose of a firewall in a network?

A) To prevent unauthorized access to the network

B) To connect devices within a network

C) To filter and forward data packets between networks

D) To convert analog signals to digital signals

25 / 50

25) What is the difference between a hub and a switch in a network?

A) Hubs connect devices within a LAN while switches connect different LANs

B) Hubs send data to all devices on the network while switches only send data to the intended recipient

C) Hubs are faster than switches

D) Hubs filter data packets while switches forward data packets to the correct recipient

26 / 50

26) Which of the following is an example of a peer-to-peer network?

A) The internet

B) A corporate network

C) A home network

D) A school network

27 / 50

27) What is the purpose of a router in a network?

A) To connect devices within a network

B) To filter and forward data packets between networks

C) To convert analog signals to digital signals

D) To provide wireless access to the network

28 / 50

28) Which of the following is a type of network address used in IPv4 addressing?

A) MAC address

B) URL address

C) IP address

D) Email address

29 / 50

29) What is the difference between a LAN and a WAN?

A) LANs are wireless networks while WANs are wired networks

B) LANs cover a smaller geographical area than WANs

C) LANs are used for personal devices while WANs are used for business devices

D) LANs are faster than WANs

30 / 50

30) Which of the following is an example of a wireless transmission medium?

A) Coaxial cable

B) Fiber optic cable

C) Microwave

D) Ethernet cable

31 / 50

31) Which of the following best describes a network?

A) A group of computers that are physically located near each other

B) A system of interconnected devices that communicate with each other

C) A standalone computer that does not connect to any other devices

D) A device that connects a computer to the internet

32 / 50

32) What is the difference between a client and a server in a network?

A) Clients receive data while servers send data

B) Clients send data while servers receive data

C) Clients and servers perform the same functions

D) Clients and servers are not used in network systems

33 / 50

33) What is a transmission mode in a network?

A) The way in which data is transferred between hosts

B) The physical medium that connects hosts

C) The type of network address used in data transfer

D) The type of switching used within a network

34 / 50

34) Which of the following is an example of a wired transmission medium?

A) Radio waves

B) Infrared light

C) Ethernet cable

D) Bluetooth

35 / 50

35) How does the speed of data transmission in a network depend on the transmission medium?

A) The speed of data transmission is independent of the transmission medium

B) The speed of data transmission increases with the length of the transmission medium

C) The speed of data transmission is faster with wired transmission media than wireless transmission media

D) The speed of data transmission is faster with wireless transmission media than wired transmission media

36 / 50

36) What is data switching in a network?

A) The process of converting analog signals to digital signals

B) The process of directing data packets from the source to the destination

C) The process of encrypting data packets for secure transfer

D) The process of compressing data packets to reduce file size

37 / 50

37) What is the role of network addresses in data transfer within a network?

A) To identify the physical location of the hosts within the network

B) To determine the type of transmission medium used in the network

C) To encrypt the data packets for secure transfer

D) To compress the data packets to reduce file size

38 / 50

38) Which of the following is a security concern specific to wireless transmission media?

A) Physical cable tapping

B) Data interception through electromagnetic radiation

C) Unauthorized access through a physical connection

D) All of the above

39 / 50

39) Which of the following wireless protocols provides the highest data transmission speed?

A) 802.11a

B) 802.11b

C) 802.11g

D) 802.11n

40 / 50

40) What is a factor that affects the speed of data transmission over twisted pair cable?

A) Distance between devices

B) Number of devices connected

C) Type of protocol used

D) Frequency of electromagnetic interference

41 / 50

41) Which type of cyber threat is designed to deny access to a network or system?

A) Virus

B) Worm

C) Trojan

D) DoS attack

42 / 50

42) What is a common vulnerability that can be exploited by a phishing attack?

A) Weak passwords

B) Unpatched software

C) Outdated antivirus software

D) All of the above

43 / 50

43) Which of the following is not a security measure for protecting networked computer systems?

A) Firewalls

B) Antivirus software

C) User passwords

D) None of the above

44 / 50

44) What is the most common protocol used for email transmission over the internet?

A) FTP

B) POP3

C) SMTP

D) MAIL1.0

45 / 50

45) Which of the following is not a factor that affects the efficiency of data transmission?

A) Bandwidth

B) Latency

C) Packet size

D) Number of users on the network

46 / 50

46) What is the main factor that affects the speed of data transmission over a wireless network?

A) Distance between devices

B) Number of devices connected

C) Type of wireless protocol used

D) Amount of data being transmitted

47 / 50

47) Which of the following transmission media is the most reliable?

A) Coaxial cable

B) Fiber optic cable

C) Twisted pair cable

D) Wireless

48 / 50

48) Which of the following addresses uniquely identifies a device on a network?

A) IP address

B) MAC address

C) IPv6

D) All of the above

49 / 50

49) What is the maximum length of an IPv4 address?

A) 32 bits

B) 64 bits

C) 128 bits

D) 256 bits

50 / 50

50) Which layer of the OSI model is responsible for adding source and destination MAC addresses to frames?

A) Application layer

B) Transport layer

C) Data link layer

D) Physical layer

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