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100+ Free RBSE SS Voc Telecom Practice Questions

Rajasthan RBSE Senior Secondary (Class 12) Vocational Telecom — Code 112 practice questions are available now; exam metadata is being verified.

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2026 Statistics

Key Facts: RBSE SS Voc Telecom Exam

112

RBSE subject code for Telecom

RBSE 2026 subject-wise statistics

100

Typical full marks for the subject scheme

RBSE syllabus examination scheme

3.15 hrs

Typical theory paper duration

RBSE Class 12 / Varishtha Upadhyaya syllabus scheme

33%

Typical minimum pass marks (confirm circular)

RBSE examination regulations

100

Free English MCQ study questions on this page

OpenExamPrep practice bank

RBSE Senior Secondary (Class 12) Vocational Telecom (code 112) is a real Board of Secondary Education, Rajasthan public-examination subject with appeared candidates in the 2026 main examination subject-wise statistics. Typical scheme: Theory 80 + Sessional 20 = 100; passing generally 33% (and separate practical pass where applicable). Use these free MCQs for theory revision only.

Sample RBSE SS Voc Telecom Practice Questions

Try these sample questions to test your RBSE SS Voc Telecom exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In digital telecommunication, a bit is best defined as:
A.The smallest unit of digital information, typically representing 0 or 1
B.A complete telephone conversation between two parties
C.The physical copper cable used for all broadband links
D.A unit of electrical power equal to one watt
Explanation: A bit (binary digit) is the fundamental unit of digital information, usually encoded as one of two states (0 or 1).
2Which statement best describes a modem’s function in a traditional broadband access path?
A.It replaces all switches in the core network
B.It converts between digital data formats used by customer equipment and the signal form used on the access link
C.It is only used to charge batteries at cell sites
D.It permanently stores every packet ever sent on the Internet
Explanation: A modem (modulator-demodulator) adapts digital customer data to the analog or line-coded signal form required on the access medium and vice versa.
3In telecom networks, bandwidth is most usefully understood as:
A.The physical weight of a cable drum
B.The number of technicians assigned to one tower
C.The range of frequencies a channel can carry, related to its information-carrying capacity
D.The voltage of the AC mains supply only
Explanation: Bandwidth describes the usable frequency span of a channel and is closely linked to how much information the channel can transport.
4Which medium typically offers the highest capacity and lowest electromagnetic interference for long-haul telecom trunks?
A.Unshielded twisted pair only
B.Open-wire copper lines with no insulation
C.Acoustic pipes filled with air
D.Optical fiber
Explanation: Optical fiber supports very high bit rates over long distances with immunity to electrical EMI because it carries light, not electrical currents.
5Full-duplex communication means:
A.Both directions can transmit information at the same time
B.Only one direction can ever send data, forever
C.Data can travel only after a paper form is signed
D.Signals may travel only through satellites
Explanation: Full duplex allows simultaneous two-way transmission (for example, talk and listen at once on a full-duplex phone link).
6In digital systems, a byte is commonly:
A.A group of 1000 towers
B.A group of 8 bits
C.Exactly one full analog voice waveform only
D.The name of a copper pair color code
Explanation: A byte is conventionally 8 bits and is a standard unit for addressing and describing digital data size.
7Which of the following best describes latency on a telecom path?
A.The color of the fiber jacket
B.The retail price of a SIM card only
C.The time delay for a signal or packet to travel from source to destination
D.The height of a radio tower in metres only
Explanation: Latency is delay—how long it takes information to go from sender to receiver—and strongly affects interactive applications.
8Packet switching differs from classic dedicated circuit switching mainly because:
A.Every call permanently reserves one copper pair for life
B.No addressing information is ever needed
C.Only analog FM radio can be used
D.Data is broken into packets that can share network resources dynamically
Explanation: Packet switching segments data into packets that share links and are routed using headers, improving resource efficiency versus fixed end-to-end circuits.
9In the OSI model, which layer is primarily responsible for end-to-end reliable data transfer between hosts (including sequencing and retransmission in classic designs)?
A.Transport layer
B.Physical layer
C.Data link layer only on one hop
D.Presentation layer only for file names
Explanation: The transport layer (e.g., TCP) provides end-to-end host communication services such as reliability, sequencing, and flow control in classic Internet architecture.
10Why is error detection (for example, CRC or checksums) used on digital links?
A.To increase the voltage of every bit automatically
B.To identify that received data may have been corrupted in transit
C.To eliminate the need for any cables
D.To set the legal price of broadband service
Explanation: Error-detection codes let the receiver check whether bits were altered by noise or interference so recovery actions can be taken.

About the RBSE SS Voc Telecom Practice Questions

Verified exam format metadata for Rajasthan RBSE Senior Secondary (Class 12) Vocational Telecom — Code 112 is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.