1. The IETF standards documents are called ________
a) RFC
b) RCF
c) ID
d) DFC
Explanation: RFC stands for Request For Comments and they are documents that describe methods, behaviors, research, or innovations applicable to the working of the Internet.
2. In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are ___________
a) Added
b) Removed
c) Rearranged
d) Modified
Explanation: Each layer adds its own header to the packet from the previous layer. For example, in the Internet layer, the IP header is added over the TCP header on the data packet that came from the transport layer.
3. The structure or format of data is called ___________
a) Syntax
b) Semantics
c) Struct
d) Formatting
Explanation: The structure and format of data are defined using syntax. Semantics defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation. In programming languages, syntax of the instructions plays a vital role in designing of the program.
4. Communication between a computer and a keyboard involves ______________ transmission.
a) Automatic
b) Half-duplex
c) Full-duplex
d) Simplex
Explanation: In simplex transmission, data flows in single direction which in this case refers to the data flowing from the keyboard to the computer. Another example would be of the mouse where the data flows from the mouse to the computer only.
5. The first Network was called ________
a) CNNET
b) NSFNET
c) ASAPNET
d) ARPANET
Explanation: ARPANET stands for Advanced Research Projects Agency Networks. It was the first network to be implemented which used the TCP/IP protocol in the year 1969.
6. A _______ is the physical path over which a message travels.
a) Path
b) Medium
c) Protocol
d) Route
Explanation: Messages travel from sender to receiver via a physical path called the medium using a set of methods/rules called protocol. Mediums can be guided (wired) or unguided (wireless).
7. Which organization has authority over interstate and international commerce in the communications field?
a) ITU-T
b) IEEE
c) FCC
d) ISOC
Explanation: FCC is the abbreviation for Federal Communications Commission. FCC is responsible for regulating all interstate communications originating or terminating in USA. It was founded in the year 1934.
8. Which of this is not a network edge device?
a) PC
b) Smartphones
c) Servers
d) Switch
Explanation: Network edge devices refer to host systems, which can host applications like web browser. A switch can’t operate as a host, but as a central device which can be used to manage network communication.
9. A _________ set of rules that governs data communication.
a) Protocols
b) Standards
c) RFCs
d) Servers
Explanation: In communications, a protocol refers to a set of rules and regulations that allow a network of nodes to transmit and receive information. Each layer in the network model has a protocol set, for example, the transport layer has TCP and UDP protocols.
10. Three or more devices share a link in ________ connection.
a) Unipoint
b) Multipoint
c) Point to point
d) Simplex
Explanation: A multipoint communication is established when three or many network nodes are connected to each other. Frame relay, Ethernet and ATM are some examples of multipoint connections.
Why Computer Network ?
The Network Symphony: Connecting the Dots
Ever wondered how your cat videos magically reach your screen? Thank the unsung hero – computer networks! They're the invisible puppeteers behind the digital circus.
Think of a computer network as a bustling highway for information. Devices chat, files zoom around, and it's all orchestrated by this virtual traffic conductor – your network.
Meet the Network Neighbors: Nodes and Links
Now, let's talk about the stars of this digital sitcom – the nodes and links. Nodes are like the cool kids at a party (your devices), and links are the secret passages they use to share gossip (data).
It's a grand social gathering where your laptop, phone, and smart fridge sip on data cocktails, chatting through links like the digital socialites they are.
Why Networks Matter: Beyond Cat Videos
Sure, cat videos are crucial, but networks do more. They connect the world, power businesses, and make sure your pizza delivery guy finds your place. It's like a global party planner!
In the grand scheme of things, understanding computer networks isn't just geeky – it's essential. Whether you're streaming, working, or ordering pizza, networks are the unsung heroes making it happen.
Cracking the Network Code: MCQ Edition
Now, let's spice things up with some MCQ action! What's the backbone of a computer network? A) Unicorn tears, B) Magic wands, or C) Links and Nodes? If you picked C, congratulations – you're on your way to becoming a network ninja!
Understanding the basics through MCQs is like having a cheat code for the tech world. So, embrace the multiple-choice magic and let the knowledge flow through you.
In conclusion, computer networks aren't just cables and codes; they're the digital heartbeat of our connected world. So, next time you binge-watch those cat videos, give a mental high-five to the network making it all possible!