set-1

1. ______ is not true in case of OSI and TCP/IP model.

1. The OSI Model is a logical and conceptual model that defines how communication needs to be done
2. TCP/IP model depends on standard protocols that assigns the network of hosts over the Internet.
3. Both OSI and TCP/IP models are protocol independent
4. None of these

2. A computer has just been installed on the Ethernet LAN but it is not communicating with the network, then what should be done at first?

1. Update the NIC driver
2. Verify the IP address configuration on the workstation
3. Verify the connectivity on the computer’s network card
4. All of the above

3. Which of the following commands is not used in the troubleshooting of computer networks?

1. Ping
2. Tracert
3. Ipconfig
4. Chkdsk

4. In network troubleshooting, which of the following commands is used?

1. Netstat
2. Nslookup
3. Tracert
4. All of the above

5. Which server maintains a directory of domain names and translate them to Internet Protocol (IP) addresses.

1. DNS Server
2. DHCP Server
3. Web Server
4. Database Server

6. Which data link sub-layer carries out data link functions that depend upon the type of medium?

1. Logical link control
2. Media access control
3. Network interface control
4. Error Control

7. When connected to the Internet, the device used to perform modulation and demodulation is called

1. Trans receiver
2. Modem
3. Repeater
4. All of the above

8. An web-site is a collection of

1. Components of internet
2. Web-pages
3. Web links
4. All of the above

9. In web applications, ______ is the correct order to form URLs.

1. Protocol name, File name, DNS name
2. DNS name, Protocol name, File name
3. Protocol name, DNS name, File name
4. Protocol name, File name, DNS name

10. In computer networking, MAN lies in between LAN and WAN in terms of

1. Area coverage
2. Data transfer rate
3. Both of the above
4. None of these

11. Which type of network is an Internet?

1. LAN
2. MAN
3. WAN
4. All of the above

12. The most commonly used network media for small local area network is ______.

1. Twisted pair cable
2. Co-axial cable
3. Optical fiber
4. All of the above

13. In computer networking, a Network Interface Card (NIC) has

1. MAC address
2. IP address
3. Subnet mask
4. All of the above

14. Which statement is true in case of IP address?

1. Every computer connected to the network must have an IP address to communicate.
2. Every computer connected to the Internet must have an IP address to communicate.
3. Both of the above
4. None of these

15. Which of the following statement is false in case of IP

1. IP is an Internet path
2. Every computer must have an IP address
3. IP is a unique address of a computer connected to the network
4. Both A and B

16. In computer networking, the commonly used topology for LAN is ______.

1. Star topology
2. Ring topology
3. Bus topology
4. Tree topology

17. In network security, which statement is true in case of IPS?

1. IPS is a network security technology that examines network traffic flows to detect and prevent vulnerability exploits.
2. If an attack is detected, IPS can stop the malicious traffic before it makes it to rest of the network.
3. Both of the above
4. None of these

18. In network security, which statement is false in case of IPS and IDS?

1. IDS is a device or software application that monitors a network or systems for malicious activity or policy violations.
2. IPS controls access to IT networks in order to protect systems from attack and abuse.
3. IDS are designed to identify suspicious attacks and to take the corrective action to block them.
4. If an attack is detected, IPS can stop the malicious traffic before it makes it to rest of the network.

19. Which statement is false in case of peer-to-peer network?

1. In peer-to-peer networks all nodes are act as server as well as client.
2. Peer-to-peer network is easier to setup.
3. Peer-to-peer network is more expensive than client server network.
4. Each workstation on the network shares its files equally with the others.

20. In computer networking, most reliable network topology.

1. Bus topology
2. Mesh topology
3. Tree topology
4. None of these

21. Which networking device can perform Network Address Translation (NAT)?

1. Bridge
2. Switch
3. Router
4. All of the above

22. What is Data Encryption Standards (DES) used in network security?

1. It is symmetric key cryptography
2. It uses only one key for encryption and decryption
3. It is asymmetric key cryptography
4. Both A and B

23. Which of the following statement is true in case of IP address and MAC address?

1. Every network device must have IP address and MAC address to communicate.
2. IP address is logical address and MAC address is physical address.
3. IP address can be changed but MAC address can never be changed.
4. All of the above

24. What type of communication media is used to develop internet backbone for a bigger and wider Information Highway in the country?

1. Wireless microwave link
2. Co-axial cable
3. Optical fiber
4. All of the above

25. In OSI reference mode, which layer takes care that the data is sent in such a way that the receiver will understand the data or information and will be able to use the data?

1. Transport layer
2. Session layer
3. Presentation layer
4. Application layer

26. Which protocol is preferred for the streaming applications that require constant data flow, bulk data and fastness than reliability?

1. TCP
2. UDP
3. FTP
4. ARP

27. In HTTPS, the communication protocol is encrypted using…

1. Application layer security
2. Transport layer security
3. Network layer security
4. None of these

28. A malware which attempts to obtain sensitive information for malicious reasons, by disguising as a trustworthy entity is called…

1. Trojan horse
2. Phishing
3. Logic bomb
4. All of the above

29. Which of the following malware do not reproduce or replicate itself but is still destructive?

1. Virus
2. Trojan
3. Worm
4. Both B and C

30. A network security device that monitors incoming and outgoing network traffic and permits or blocks data packets based on a set of security rules is called

1. Router
2. Switch
3. Firewall
4. None of these

31. In computer networks, ______ is categorized in the computer related threats.

1. Phishing
2. Spyware
3. Trojan horse
4. All of the above

32. A universe of network-accessible information where web resources are identified by URLs and accessible via the Internet is called______.

1. Local Area Network (LAN)
2. Wide Area Network (WAN)
3. World Wide Web (WWW)
4. Storage Area Network (SAN)

33. In computer networking, ______ is not any network type.

1. Metropolitan Area Network
2. Public Area Network
3. Wireless Local Area Network
4. Personal Area Network

34. A private enterprise network which is designed to support an organization’s employees to communicate, collaborate and perform their roles in a secure manner is called…

1. Email
2. Internet
3. Extranet
4. Intranet

35. Which computer related threat attempts to obtain sensitive information by disguising as a trustworthy entity?

1. Virus
2. Trojan
3. Worms
4. Phishing

36. In network communication, which medium has the highest data transmission speed?

1. Optical Fiber
2. Satellite
3. Coaxial Cable
4. Microwave Link

37. Which statement is false in case of Digital Signature?

1. A digital signature is a mathematical algorithm routinely used to validate the authenticity and integrity of a message, software or digital document.
2. Digital signature provides far more inherent security than handwritten signature.
3. Just like a handwritten signature, a digital signature is unique for every document.
4. None of these

38. In web applications, which security is applied in HTTPS?

1. Application layer security
2. Transport layer security
3. Network layer security
4. None of these

39. In Nepal, the prevailing law which deals with the issues relating to cybercrime is…

1. Electronic Transaction Act, 2063
2. Criminal Act, 2074
3. Copyright Act, 2059
4. Right to-Information Act, 2064

40. In OSI reference mode, which layer takes care that the data is sent in such a way that the receiver will understand the data or information and will be able to use the data?

1. Transport layer
2. Session layer
3. Presentation layer
4. Application layer

41. An ______ is a network security tool that continuously monitors a network for harmful activity and takes corrective action to block it.

1. Intrusion Detection System (IDS)
2. Intrusion Prevention System (IPS)
3. Both of the above
4. None of these

42. Which of the following statements is false in case of Denial of Services (DoS) and Distributed Denial of Services (DDoS) attacks?

1. Both attacks overload a server, rendering a website or resource inaccessible to the intended users.
2. DDoS attack is a DoS attack that floods a targeted resource with several computers or machines.
3. DoS attack is faster as compared to DDoS.
4. None of these

43. Which statement is false in case of Digital Signature?

1. A digital signature is a mathematical algorithm routinely used to validate the authenticity and integrity of a message, software or digital document.
2. Digital signature provides far more inherent security than handwritten signature.
3. Digital signature, like handwritten signature, becomes unique for each document.
4. None of these

44. ___ command can be used to check network connectivity between the host and the server/host when troubleshooting computer networks?

1. IPCONFIG
2. PING
3. TRACERT
4. Both B and C

45. An ___ is a private network that provides controlled access to authorized customers, vendors, partners, or others outside the company.

1. Internet
2. Intranet
3. Extranet
4. All of the above

46. A network in which two or more PCs are linked together to share files and get access to common devices like printers, scanners is called

1. Client – Server Network
2. Peer to Peer Network
3. Both of the above
4. None of these

47. Which of the following is not a network device?

1. Hub
2. Bridge
3. Router
4. Tape Drive

48. A type of malicious code .which disguises itself as a desirable code or software but can take control of your computer is

1. Virus
2. Worms
3. Trojan
4. Phishing

49. A piece of code intentionally inserted into a software system that will cause malicious function when specified conditions are met is called

1. Worm
2. Torjan horse
3. Logic bomb
4. None of these

50. ___is not a valid subnet mask in computer networking.

1. 255.0.255.0
2. 255.255.255.248
3. 255.255.248.0
4. 255.0.0.0