Looking for accurate SEBA Class 9 Computer Science Chapter 4 textual solutions for the 2026–27 academic year? Access step-by-step textbook exercise answers, key concepts, short definitions, and practical explanations designed to help you score top marks in your annual exams.
I. Fill In The Blanks:
(a) The connection structure of a computer network is called______.
Ans. topology.
(b) Normally server computers are______ than client computers.
Ans. higher capacity computers.
(c) An organizations who provide an internet connection to their consumers is called_____.
Ans. Internet Service Provider (ISP).
(d) Based on __ search results are ordered in a search engine.
Ans. rank.
(e) The sent section of an email interface contain _ emails.
Ans. successfully sent.
Class 9 Computer Science Chapter 4 Question Answer SEBA 2026-27
II. Choose the correct option.
(a) A network switch is required to from.
(1) Star Topology
(2) Mesh Topology
(3) Ring Topology
(4) Bus Topology
Ans. (1) Star Topology.
(b) How many cables are required to from a mesh topology of 10 computers?
(1) 15
(2) 100
(3) 25
(4) 45
Ans. (4) 45.
(c) Which of the following not a protocol?
(1) HTTP
(2) HTTPS
(3) ISP
(4) FTP
Ans. (3) ISP.
(d) How many repeaters are required to transfer data up to 400 metres using a twisted-pair cable?
(1) Not required
(2) 4
(3) 2
(4) 3
Ans. (2) 4.
(e) Normally unsolicited bulk emails appear in
(1) Inbox
(2) Trash
(3) Drafts
(4) Spam
Ans. (4) Spam.
SEBA Class 9 Computer Science Chapter 4 Textual Solutions
DESCRIPTIVE TYPE QUESTIONS
III. Short answer questions.
1. What is topology? From your understanding describe which topology will be best to set up a computer network in your school.
Answer:
Network topology is the way computers and devices are connected in a network. It shows the layout or pattern of connections.
The star topology is a great choice because it’s easy to set up, affordable, and provides better redundancy than other topologies.
SEBA Class 9 Computer Science Chapter 4 Notes
2. Give an example of a URL and describe different sections of it.
Answer: URL stands for Uniform Resource Locator and is a reference (an address) to a resource on the Internet.
Exmpleof URL is
https://www.example.com/blogs/page_name
Their different sections are:-
Protocol: https:// → Defines how data is transmitted.
Domain Name: www.example.com → The website’s address.
Directory: /blogs → Shows the Directory.
3. What is ranking? How is it related to a search engine?
Answer: Rankings in SEO refer to a website’s position on search engine results pages (SERP). Factors like content relevance and the quality of backlinks determine how high a website ranks.
4. What is the use of BCC in an email? Describe with an example.
Answer: For security and privacy, it’s best to use the BCC (Blind Carbon Copy) feature when sending emails to many people. This keeps the email addresses hidden from other recipients.
For example, if abc@example.com and pqr@example.com are in the BCC list, they won’t know the other received the email.
5. What are the differences between Chat and Video Conferencing?
Answer: Chat is text-based, where people send and receive messages, like in WhatsApp or Messenger. On the other hand, video conferencing allows real-time communication with both video and audio, like in Zoom or Google Meet.
Chat can be slow because replies depend on the user but VIdeo Conferencing feels like a face-to-face conversation and is useful for meetings and online classes.
Class 9 Computer Science Chapter 4 Answer Key
💻 Updated Solutions Notice: This page features complete, step-by-step SEBA Class 9 Computer Science Chapter 4 Textual Exercise Solutions updated for the 2026–27 academic session. All textbook question answers, theoretical concepts, and computer logic strictly follow the latest revised Assam Board (SEBA) curriculum.
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