गुरुवार, 6 नवंबर 2014

COMPUTER GK 1051-1100

1051) E-mail address is made up of two parts
1052) The normal way to undo a command by pressing the following key combinations together CTRL-Z
1053) The owner of a process is user that invokes the process
1054) In datagram packet switching all the datagram’s of a message follow the same channel of a path
1055) X.25 LAPP uses a specific subset of HDLC protocol
1056) Presentation layer of the OSI reference model is concerned with the syntax of data exchanged between application entities
1057) Edge-triggered D flip –flop memory elements uses an PC circuit at its input
1058) Programs that extend the capabilities of a server are C41 scripts
1059) The primary goal of ISDN is the integration of voice services and non-voice services
1060) Flow control in OSI model is done by transport layer
1061) The optical links between any two SONET devices is called a section
1062) A user can get files from another compute on the internet by using FTP
1063) The key fields which are tested by a packet filtering firewall are source IP address , TCP/UDP source port, destination IP address
1064) The server on the internet is also known as gateway
1065) VBScript can perform calculation of data
1066) In MS-Word, ‘mail merge’ can be defined writing a letter once and dispatching it to a number of recipients
1067) Coaxial cables are good for digital transmission and long distance transmission
1068) LRU is a page replacement policy used for memory management
1069) Commercial TV is an example of distributive services with user control
1070) The exact format of frame in case of synchronous transmission depends on whether transmission scheme is either character oriented or bit oriented
1071) RING topology is least affected by addition/remove of a node
1072) EX-OR gates recognizes only words that have an odd number of 1
1073) To interconnect two homogenous WAN’s we need a router
1074) Co-axial cables provides data rates over 50 mbps
1075) The outermost orbit of an atom can have a maximum of 8 electrons
1076) The protocol for sharing hypertext information on the world wide web is HTTP
1077) ISDN’s basic rate interface (BRI) is also known as 2 D + B
1078) The mode of data transmission of unshielded twisted pair cable is full duplex
1079) Data accuracy is not done by modem
1080) Query is used to answer a question about a database
1081) AM and FM are examples of analog to analog modulation
1082) Redundancy is the concept of sending extra bits for use in error detection
1083) The physical layer is concerned with transmission of bits over the physical medium
1084) The number of input lines required for a 8 to 1 multiplexes is 8
1085) The bar-code (rectangular pattern of lines of varying width and spaces) used for automatic product identification by computer
1086) FSK is most affected by noise
1087) Stack is a LIFO structure
1088) CPU is not an input device of a computer
1089) Program of a computer presented as a sequence of instructions in the form of binary numbers is called machine language
1090) Possible problems with java scrip can be security or limited graphics and multimedia capabilities
1091) For locating any document on the WWW. There is a unique address known as URL
1092) Design view would use to define a table and specify fields
1093) Traversal process is faster for threaded trees compared with their unthreaded counterparts
1094) The command used to display help on any particular command is man
1095) In C++ programming, the extension of program is .cpp
1096) A generic team that refers to the combination of all commercial transactions executed over electronic media for the exchange of product and services
1097) In DOS, the command used to create a new file is called copy con
1098) Backup helps you to create a copy of the information on your hard disk and saves original data in case data on your computer got damaged or corrupted due to malfunctioning of hard-disk
1099) LAN is usually privately owned and links the devices in a single office, building or campus

1100) In justified type of alignment, text gets aligned along both left and right margins

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