Description : Which of the following is not true for a magnetic disk? a. It is expensive relative to magnetic tape b. It provides only sequential access to stored data c. Users can easily update records by writing over the old data d. All of above
Last Answer : It provides only sequential access to stored data
Last Answer : b. It provides only sequential access to stored data
Description : Magnetic disk a medium known as 1) Serial access 2) Direct access 3) Sequential access 4) Sequential and rotational access
Last Answer : 2) Direct access
Description : Which of the following statement(s) is/are FALSE in the context of Relational DBMS ? I. Views in a database system are important because they help with access control by allowing users to see only a particular subset of the data ... (B) III and IV only (C) I, II and III only (D) II, III and IV only
Last Answer : (D) II, III and IV only
Description : The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as A) Magnetic core memory B) Magnetic tape memory C) Magnetic disk memory D) Magnetic bubble memory
Last Answer : Answer : D
Description : The magnetic storage chips used to provide non-volatile direct access storage of data and that have no moving parts are known as________ A. Magnetic core memory B. Magnetic tape memory C. Magnetic disk memory D. Magnetic bubble memory
Last Answer : D. Magnetic bubble memory
Description : The Method of file organisation in which data records in a file are arranged in a specified order according to a key field is known as the1 Direct access method 2) Queuing method 3) Predetermined method 4) Sequential method
Last Answer : 4) Sequential method
Description : The magnetic storage chip used to provide non-volatile direct access storage of data and that have no moving parts are known as a. Magnetic core memory b. Magnetic tape memory c. Magnetic disk memory d. Magnetic bubble memory
Last Answer : a. Magnetic core memory
Last Answer : d. Magnetic bubble memory
Description : Which access method is used to access cassette tape? A) Direct B) Sequential C) Both of the above D) None of the above
Last Answer : Answer : B
Description : The number of records contained within a block of data on magnetic tape is defined by the A) Block definition B) Record contain clause C) Blocking factor D) Record per block
Last Answer : Answer : C
Description : Direct access of file is also known as (1) random access (2) relative access (3) file access (4) sequential access
Last Answer : random access
Description : Magnetic disks are the most popular medium for A) Direct access B) Sequential access C) Both of above D) None of above
Description : Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify? A) Track number B) Sector number C) Surface number D) All of above
Description : Which digital data tape encoding method presets the magnetic tape to all zeros and then records digital ones onto the tape?
Last Answer : Return-to-bias (RB) encoding.
Description : The number of records contained within a block of data on magnetic tape is defined by the a. Block definition b. Record contain clause c. Blocking factor d. Record per block factor
Last Answer : c. Blocking factor
Description : Which of the following is not a primary storage device? A) Magnetic tape B) Magnetic disk C) Optical disk D) All of the above
Description : Which of the following is not a primary storage device? A) Magnetic tape B) Magnetic disk C) Optical disk D) All of above
Description : Which among the following is a folder: a) Floppy Disk b) Magnetic Drum c) Magnetic Tape d) DVD e) None of The Above
Last Answer : e) None of The Above
Description : Which one of the following a file? 1) Floppy disk 2) Magnetic drum 3) magnetic tape 4) None of these
Last Answer : 4) None of these
Description : ________ is the ability of a device to ‘jump’ directly to the requested data A. Sequential access B. Random access C. Quick access D. None of the Above
Last Answer : B. Random access
Description : Which of the Following is not true of immediate processing: a) It is often used in real time applications b) It can be used in an airline reservation system c) It can occur with either sequential or direct access files d) None of The Above
Last Answer : c) It can occur with either sequential or direct access files
Description : Magnetic disks are the most popular medium for a. Direct access b. Sequential access c. Both of above d. None of above
Last Answer : Both of above
Last Answer : c. Both of above
Description : Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify? a. Track number b. Sector number c. Surface number d. All of above
Last Answer : Track number
Last Answer : d. All of above
Description : Data store in a DFD represents. A) a sequential file B) a disk store C) a repository of data
Last Answer : C) a repository of data
Description : Which device is used to backup the data? A) Floppy Disk B) Tape C) Network Drive D) All of the above
Description : What characteristics of Read Only memory ROM, makes it useful? 1) ROM information can be easily updated. 2) ROM provides very large amounts of inexpensive Data storage. 3) Data in ... remains there even without electrical power 4) ROM chips are easily Swapped between different brands of computers
Last Answer : 3) Data in ROM is Nonvolatile, that is , it remains there even without electrical power
Description : The primary advantage of key-to-tape data entry system is A) A large percentage of editing can be performed at the time of data entry B) Key verification is easily performed C) The tape is reusable D) Keying errors can be detected as they occur.
Description : Which is not true for primary storage: a) Information must be transferred to primary storage b) It is relatively more expensive c) It allows very fast access to data d) It is part of processor e) None of The Above
Last Answer : d) It is part of processor
Description : A CD-RW disk- 1) Has a faster access than an internal disk 2) Is a form of optical disk, so it can only be written once 3) Holds less data than a floppy disk 4) Can be erased and rewritten
Last Answer : 4) Can be erased and rewritten
Description : Difference between hard disk and magnetic tape?
Last Answer : magnetic tapes are cheaper
Description : Which of the following is not a magnetic memory: a) Flip-flop b) Tape c) Drum d) Disk
Last Answer : Ans: A
Description : Which of the following is not a primary storage device? a. Magnetic tape b. Magnetic disk c. Optical disk d. None of above
Last Answer : None of above
Description : Which of the following is not a primary storage device? a. Magnetic tape b. Magnetic disk c. Optical disk d. None of the above
Last Answer : d. None of the above
Last Answer : d. None of above
Description : The ability to find an individual item in a file immediately _____ is used. 1) File allocation table 2) Directory 3) Sequential access 4) Direct access 4 5) None of these
Last Answer : Answer :1
Description : The two basic types of record access methods are: A) Sequential and random B) Sequential and indexed C) Direct and immediate D) Online and real time
Last Answer : Answer : A
Description : Memories in which any location can be reached in a fixed amount of time after specifying its address is called ________ A. Sequential Access Memory B. Random Access Memory C. Quick Access Memory D. Mass storage
Last Answer : B. Random Access Memory
Description : The ability to find an individual item in a file immediately _____ is used: a) file allocation table b) directory c) sequential access d) direct access e) None of The Above
Last Answer : a) file allocation table
Description : Hard Disks and Diskettes are: a) Direct Access Storage Devices b) Sequential Access Storage Devices c) Rarely used Microcomputers d) None of The Above
Last Answer : a) Direct Access Storage Devices
Description : The simultaneous execution of two or more instructions is called- 1) Sequential Access 2) Reduced Instruction set computing 3) Multiprocessing 4) None of these
Last Answer : 3) Multiprocessing
Description : Separate Read/Write heads are required in which of these memory access schemes. 1) Random Access 2) Sequential Access 3) Direct Access 4) None of these
Description : Separate Read/Write heads are required in which of these memory access schemes. 1 Random Access 2 Sequential Access 3 Direct Access 4 None of these
Last Answer : 4 None of these
Description : Sequential step hackers use are: _ _ _ _. A. Maintaining Access. B. Reconnaissance C. Scanning. D. Gaining Access.
Last Answer : A. Maintaining Access.
Description : After using a tape that was stored in an area where temperatures exceeded 130º F you notice pieces of oxide sticking to the recorder's tape-transport mechanism, to its magnetic heads, and onto the tape. What is the probable cause of these symptoms?
Last Answer : Oxide shedding. At temperatures above 130º F, oxide coating becomes soft and sheds.