1. Which of the following connectors is used for UTP cables ?
JOA-IT 913 *
Correct : A
Explanation: What is UTP network cable?
Unshielded twisted pair (UTP) is a type of copper wire which is used in telephone wiring and local area networks (LANs).
2. B2B, B2C, G2C, AND C2G are the forms of ________.
JOA-IT 913 *
Correct : C
Explanation: business-to-consumer (B2C), business-to-business (B2B), consumer-to-consumer (C2C), and consumer-to-business (C2B) all are the types of E-commerce.
3. The _____ sensor in mobile devices tracks the orientaion whenever the device is rotated.
JOA-IT 913 *
Correct : B
Explanation: Gyroscope -
This sensor detects the orientation of the phone and is responsible for auto-rotating the screen and view. It can measure the angular velocity of movement along one or more axes.
4. Micorsoft ____ is a cloud storage srvice that lets you store and backup your files.
JOA-IT 913 *
Correct : D
Explanation: Microsoft OneDrive is a cloud storage service that allows users to store, access, and share files from anywhere. It also offers automatic backup, file syncing, and collaboration features.
5. In mobile phone system, a geographic region is divided up into ____ to implement the concept of frequency reuse.
JOA-IT 913 *
Correct : C
Explanation: In mobile phone systems, a geographic region is divided into cells to implement frequency reuse. Frequency reuse is the ability to use the same frequencies repeatedly across a cellular system.
6. What is the full form os IOT ?
JOA-IT 913 *
Correct : D
Explanation: IoT stands for Internet of Things. It is a network of physical objects, vehicles, and appliances that are embedded with sensors, software, and connectivity capabilities. These capabilities allow them to collect and exchange data over the internet.
7. ____ is a platform provided by Amazon that provides scalable and cost effectice cloud computing services.
JOA-IT 913 *
Correct : A
Explanation: Amazon Web Services (AWS) is a cloud computing platform that offers scalable and cost-effective solutions. AWS is a widely used platform that provides on-demand services like content delivery, database storage, and compute power.
8. Which is a wireless technology that uses multiple transmitters and recievers to transfer more data at the same time ?
JOA-IT 913 *
Correct : C
Explanation: Multiple-Input Multiple-Output (MIMO) is a wireless technology that uses multiple transmitters and receivers to transfer more data at the same time.
9. Which of the following layers in ISO OSI reference network model lies between physical and netwrok layers ?
JOA-IT 913 *
Correct : A
Explanation: The OSI model has seven layers (↓):
Physical
Data Link
Network
Transport
Session
Presentation
Application
10. Which layers in ISO OSI refernce network model is resposnible for routing os packets over network ?
JOA-IT 913 *
Correct : C
Explanation: The Network Layer, or Layer 3, of the Open Systems Interconnection (OSI) model is responsible for routing packets from one network to another. This layer also provides logical addressing, such as IP addresses, and routing functionality.
11. A web based information repository that is collaborately edited by the member of the concerned community is called a _______
JOA-IT 913 *
Correct : B
Explanation : A wiki is a website that allows a community of users to collaboratively edit its content and structure. Wikis are a popular way to read, write, and share information online.
12. The frequency band of the spectrum reserved for unlincensed usage is called
JOA-IT 913 *
Correct : B
Explanation: The Industrial, Scientific, and Medical (ISM) band is a frequency band reserved for unlicensed usage. ISM bands are also known as unlicensed bands.
13. A computer can capture all packets being transmitted over the shared transmission medium by setting network interface in ___ mode.
JOA-IT 913 *
Correct : C
Explanation: Promiscuous mode allows a network device to intercept and read every network packet that arrives in its entirety. It ensures that all transmitted data packets are received and read by network adapters.
14. Which of the following is an invalid IPv4 address ?
JOA-IT 913 *
Correct : D
Explanation: Internet Protocol version 4 (IPv4) is the fourth version of the Internet Protocol (IP). It is a core protocol for internetworking methods and packet-switched networks.
15. Which of the following IPv4 address is reserved by IANA for private use ?
JOA-IT 913 *
Correct : A
Explanation: The Internet Assigned Numbers Authority (IANA) has reserved the following IPv4 address ranges for private use:
10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, 192.168.0.0 to 192.168.255.255
16. Which of the following is a type of optical fibre cable ?
JOA-IT 913 *
Correct : C
Explanation: There are three types of fiber optic cable: Single mode, Multimode and Plastic optical fiber (POF).
17. What is the full form of the term WEP used with Wi-Fi security ?
JOA-IT 913 *
Correct : D
Explanation: WEP stands for Wired Equivalent Privacy. It is a security protocol for wireless networks that was introduced in 1999. WEP is the oldest and most common Wi-Fi security protoco
18. A ____ is a memory area that stores the data, while it is being transferred between two devices or between a device and an application.
JOA-IT 913 *
Correct : C
Explanation: A buffer is a memory area that temporarily stores data while it is being transferred between two devices or between a device and an application. Buffering is used to deal with a speed mismatch between the producer and consumer of the data. The main causes of buffering are traffic bursts, many-to-one traffic patterns, and interface speed mismatches.
19. What are the names of two fictional character commonly depicted as users to demonstrate cryptographic system and protocols ?
JOA-IT 913 *
Correct : D
Explanation: Alice and Bob are fictional characters used as placeholders in cryptography and other science and engineering literature. They are used to explain concepts and protocols, and to illustrate the interactions and protocols involved in secure communication.
20. Bitcoin and Etherium are example of
JOA-IT 913 *
Correct : C
Explanation: Bitcoin and Ethereum are both examples of cryptocurrencies, which are digital money transfer systems that use blockchain technology.