Test Session Chapter 6 Introduction to Computer Networks (9th Computer and Entrepreneurship)

Multiple Choice Questions 10×1=10

1 What does a router use to decide the best path for data packets?

A MAC table

B Routing table

C DNS record

D None of these

2 Which device is essential for connecting to a mobile network?

A Hub

B Firewall

C DNS server

D SIM card

3 Which topology connects all devices to a single central cable?

A Bus

B Star

C Ring

D Mesh

4 In a Star topology, what device is analogous to a school principal’s office?

A Hub

B Router

C Switch

D Modem

5 What is an example of an IPv4 address format?

A 2001:0db8:85a3:0000:0@B9:B82b68370:7334

B 192.168.1.1

C 00-1A-2B-3C-4D-5E

D None of these

6 What is the total number of unique IPv6 addresses?

A 340 undecillion

B 4.3 billion

C 1 million

D 10 trillion

7 Which protocol is responsible for reliable data transfer?

TCP

– Transmission Control Protocol

UDP

– User Datagram Protocol

A TCP

B UDP

C HTTP

D DNS

8 What is the role of FTP?

A Assign domain names

B Encrypt message

C Block viruses

D Transfer files

9 Which protocol is faster but less reliable than TCP?

A UDP

B HTTP

C SMTP

D DNS

10 What does SMTP stand for?

A Secure Mail Transfer

B System Message Transport Protocol

C Server Management Terminal Protocol

D Simple Mail Transfer Protocol

Short Answer Questions 10×2=20

1 Define data communication and list its key components.

2 What role does a server play in a network?

Client ↔ Server ↔ Resources

3 How does a router determine the best path for data packets?

4 How does a LAN differ from a WAN in terms of geographical coverage?

5 What device acts as the sender in an email exchange?

6 What is the communication medium in a Wi-Fi network?

7 How does HTTP facilitate web communication?

8 What device directs data packets between different networks?

9 What is the purpose of a routing table in a router?

10 How does a wireless access point transmit data?

Detailed Answer Questions (Answer any 2) 2×5=10

1 Describe real-world applications of computer networks in business, education, and healthcare.

Key Areas:
1. Business: Email, video conferencing, cloud services
2. Education: Online learning, digital libraries, collaboration tools
3. Healthcare: Telemedicine, electronic health records, remote monitoring

2 Explain how a wired medium (e.g., Ethernet) transmits data compared to wireless methods.

Wired: Cable → Electrical Signals → Data
Wireless: Radio Waves → Antenna → Data

3 Discuss the role of DNS in the TCP/IP suite for domain name resolution.

DNS = Domain Name System
Converts: example.com → 192.168.1.1