Mobile Forensic MCQs Section 1 Part 4.2: The Cellular Network

The Cellular Network is the 4th topic in section 1, Basic and Fundamental Concepts from our systematic designed Mobile Forensic MCQ Series.

Attention Users:
For systematic learning, please prefer to check the index page of the MCQs in Mobile cell Forensic. (Index Page of Mobile Forensic)

You can also check our MCQ section in various fields in forensic science and also our Higher Order Thinking Question (HOTs) Section which further enriches your knowledge for the preparation of various entrance examinations like UGC NTA-NET/JRF, FACT and FACT+, University PG Entrance Exam (DU, GFSU, etc. ), or other Entrance Examination across the globe.

In this section, MCQs are designed on the topic covering basic to advanced in the cellular network in the field of Mobile Forensic.

Mobile Forensic MCQ Sec.1 Part 4.2
The Cellular Network

This section of mobile forensic included 37 MCQs questions along with answers and their explanations.

This Multiple Choice Questions is the second part of Cellular Networks MCQ series. Please check the first part before reading this MCQ section of cell forensic

Mobile Forensic MCQs Questions list

Questions included in this section of Mobile Forensic
  1. #1 What is IMSI stands for?
  2. #2 The IMSI value is associated with
  3. #3 Assertion (A): All Type of Sim have IMSI number on SIM itself.Reason (R): IMSI can be used for the identification of the SIM module.
  4. #4 How many digits are in the string of IMSI numbers?
  5. #5 Which of the following is NOT the part of the IMSI number of SIM?
  6. #6 ICCID value is stored on
  7. #7 Which number is commonly printed on the SIM cards?
  8. #8 What is the length of the ICCID number?
  9. #9 ICCID number comprised of
  10. #10 Assertion (A): In the case of locked SIM, ICCID value has major advantage over IMSI value.Reason (R): ICCID value is readable while the IMSI value remains unreadable due to security lock.
  11. #11 What is the full form of MDN?
  12. #12 Which is NOT true for MIN?
  13. #13 Assertion (A): MIN is the derivative of IMSI and used to identify the device on the network. Reason (R): MIN is used to identify a Mobile station (MS)
  14. #14 Assertion (A): The Mobile station is a device that is placing the call.Reason (R): MS is using a handset and SIM to connect to the network.
  15. #15 The handset along with SIM is called
  16. #16 In mobile forensic, BTS stands for
  17. #17 Assertion (A): If a user calls a number from its phone-book, it goes directly to BTS.Reason (R): It is the first step for transmission of the call.
  18. #18 What is the major component of the BTS?
  19. #19 At BTS level which of the following pieces of equipment are used?
  20. #20 Which of the following is NOT true for BSC?
  21. #21 Assertion (A): BSC works between BTS and Mobile switching center (MSC).Reason (R): BSC act as “manager” and responsible for performing radio channel setup, frequency hopping, and handoffs.
  22. #22 Which of the following is NOT included for routing in Mobile Switching Center?
  23. #23 Calls that are needed to go outside of the network are routed to
  24. #24 Which of the following is NOT the variant of MSC?
  25. #25 How the Home Location Registry (HLR) is useful in mobile forensic?
  26. #26 What is the full form of a VLR?
  27. #27 What is the use of VLR in mobile forensic?
  28. #28 Assertion (A): TMSI function is similar to IMSI i.e. it grants services by VLR but also different at the same time.Reason (R): TMSI will have numerous values for a mobile device, But IMSI value never changes for a subscriber.
  29. #29 Assertion (A): Equipment Identity Registry (EIR) is a sub-function of MSC.Reason (R): As it stores the information of the IMEI or MEID that is allowed services on a network.
  30. #30 How EIR is beneficial for mobile forensic?
  31. #31 How many types of the list does EIR maintain?
  32. #32 EIR’s white list store information of
  33. #33 Assertion (A): If a stolen device is blacklisted in one region or country, then in another network’s country the device may work.Reason (R): EIR database is specific for the network they are maintained on.
  34. #34 Which statement is NOT true for AuC?
  35. #35 Assertion (A): SIM card has its own Authentication key which is not available to the user. Reason (R): It prevents the SIM from cloning, frauding and other security-related issues.
  36. #36 In mobile networking, PSTN stands for
  37. #37 Assertion (A): In a mobile forensic examination, the study of routed calls routed through the cellular network is crucial evidence in the judicial process.Reason (R): It defines how data are stored in each specific location and somehow uses to trace the footprint of suspect in question.

#1 What is IMSI stands for?

  1. Internet Mobile Subscriber Identifier
  2. International Mobile Subscriber Identity
  3. Internet Machine Subscriber Identity
  4. International Machine Substitute Identifier

Answer & Explanation

Answer: (2) International Mobile Subscriber Identity

IMSI is a unique number that is associated with the GSM (Global System for Mobile Communications) and UMTS (Universal Mobile Telecommunications System) network mobile phone users.

#2 The IMSI value is associated with

  1. Mobile device
  2. SIM Card
  3. Mobile Processor
  4. WI-FI Serial Number

Answer & Explanation

Answer: (2) Sim card

IMSI number is associated with the SIM Card. This number can be used to identify the subscriber of the SIM.

#3 Assertion (A): All Type of Sim have IMSI number on SIM itself.

Reason (R): IMSI can be used for the identification of the SIM module.

  1. Both (A) and (R) are correct
  2. (A) is correct, but (R) is incorrect
  3. Both (A) and (R) are incorrect
  4. (A) is incorrect, but (R) is correct.

Answer & Explanation

Answer: (4) (A) is incorrect, but (R) is correct.

Some devices like CDMA LTE devices or pay-as-you-go devices (burner phones) does not store IMSI number on SIM.

#4 How many digits are in the string of IMSI numbers?

  1. 15
  2. 16
  3. 17
  4. 18

Answer & Explanation

Answer: (1) 15

IMSI usually has 15 digits strings.

#5 Which of the following is NOT the part of the IMSI number of SIM?

  1. Mobile Country Code
  2. Mobile Network Code
  3. Mobile Check Digit
  4. Mobile Station Identification Number

Answer & Explanation

Answer: (3) Mobile Check Digit

IMSI number has a

  • 3-digit Mobile Country Code (MCC),
  • a 3-digit Mobile Network Code (MNC), and
  • the next 9-digit to be a Mobile Station Identification Number.

The check digit is not a part of the IMSI number.

#6 ICCID value is stored on

  1. Mobile device only
  2. SIM cards
  3. Wifi Adaptors
  4. Mobile Atom Processor

Answer & Explanation

Answer: (2) SIM cards

ICCID is a unique serial number that is stored on a SIM card.