IT Officer Study Materials: One Liners (Part-4) Download PDF ~ GyanExpress : Prepare For Exams

The physical layer is concerned with transmission of bits over the physical medium
A modem performs modulation, demodulation, data compression
A processor needs software interrupt to obtain system services which need execution of privileged instructions
FORMAT command in MS-DOS is used for recreating disk information
DOS floppy disk does not have a boot record
The unit in CPU or processor, which performs arithmetic and logical operations is ALU
Normal is not a type of HTML pages
Validity routines control procedures can be used to ensure completeness of data
Computer-Aided design: Refers to any computer-enabled method of design also called computer-assisted design.
Node to node delivery of the data unit is the responsibility of the data link layer
In a network with 25 computers, mesh topology would require the most extensive cabling
The key fields which are tested by a packet filtering firewall are source IP address, TCP/UDP source port, destination IP address
Running, blocked, ready, terminated are different states of a process
Programs that extend the capabilities of a server are C41 scripts
In computer technology, a compiler means a program, which translates source program into object program
Protocol conversion can be handled by gateway
Ring requires a central controller or hub
Modem is a modulator-demodulator system
The ability to find an individual item in a file immediately direct access is used.
“FIFO” stands for first in first out
Co-axial cables provide data rates over 50 Mbps
FORTRAN is a mathematically oriented languages used for scientific problems
The print to file option creates .prn file
Under a centralized organization, Intranet is an effective networking tool.
The sector size of a floppy disk varies from 128 bytes to 1024 bytes
Stack is an LIFO structure
A device operating at the physical layer is called a repeater
Overflow condition in linked list may occur when attempting to create a node when linked list is empty
BIOS of MS-DOS resides in ROM
Rational rose is an example of a modeling language
Edge-triggered D flip –flop memory elements uses a PC circuit at its input
Interpreter is a translator which translates high-level language program into a machine language program
RLL refers to run length limits
In HTML loading, <BR> tag is used for displaying a new line
A variable for which memory is allocated at block entry and deallocated at block exit is called a static variable
Binary numbers are positional numbers
Virtual memory is memory on the hard disk that the CPU uses as an extended RAM
The body of the recursive function contains a statement that causes the same function to execute before completing the last call
Information travels between components on the motherboard through buses
When data changes in multiple lists and list are not updated, this causes data inconsistency
In MS-EXCEL 2010 the no of rows 1048576, no of columns are 16384
Heat sink is the metal device that draws heat away from an electronic device
A T.V. broadcast is an example of simplex transmission
The shortest path in routing can refer to the least expensive path
Syntax errors are flagged by compilers
The bus is simple series of connection that carry common signals
The code that relational database management systems use to perform their database task is referred to as SQL
When you boot up a PC — portions of the operating system are copied from disk into memory
In UNIX, end-of-file is indicated by typing CTRL-D
The first character in the ASCII character set is the null character, which is nonprintable