Computer interview questions – page 38

A networks that requires human intervention to route signals is called

1. A.Star networks
2. B.Ring networks
3. C.T-switched networks
4. D.Bus networks

Communications software package enable users to access services such as

1. A.Electronic mail
2. B.Electronic bulletin boards
3. C.Video channels
4. D.Both (a) and (b)

Which command creates and initializes one or more memory variables?

1. A.RELEASE
2. B.KEEP
3. C.STORE
4. D.UPDATE

Report generators are used to

1. A.Store data input by a user
2. B.Retrieve information from files

The logical data structure with a one-to-many relationship is a

1. A.Tree
2. B.Chain
3. C.Network
4. D.All of these

In a database, related fields are grouped to

1. A.File
2. B.Bank
3. C.Menu
4. D.Data record

The database environment has all the following components except

1. A.Database administrator
2. B.Database
3. C.Users
4. D.Separate files

Which database handles full text data, image, audio and video?

1. A.Multimedia database
2. B.Video on demand database
3. C.Graphics database
4. D.Transaction database

Portion of server memory set aside to temporary hold data packets form workstations is called

1. A.Dirty packet buffer
2. B.Packet cache buffer
3. C.Packet block
4. D.Packet receive buffer

Which of the following is NOT true with respect to a transparent bridge and a router?

1. A.A router can connect between a LAN and a WAN
2. B.A bridge builds up its routing table by inspecting incoming packets
3. C.A bridge uses IP addressed while a router uses MAC addresses
4. D.Both bridge and router selectively forward data packets

In the slow start phase of the TCP congestion control algorithm, the size of the congestion window

1. A.Increases exponentially
2. B.Increases quadratically
3. C.Increases linearly
4. D.Does not increase

To set up a bulletin board system we need a

1. A.Personal computer
2. B.Telephone line
3. C.Smart modem with auto answer capabilities
4. D.All of these

A help system in an application program is used to

1. A.Display explanatory information
2. B.Display menus to prompt the users with choices of available commands
3. C.Make it easy to switch from one mode to another
4. D.All of these

In text editor and graphic editors, moving text or graphics from one place to another as then a document is called

1. A.Cut and paste
2. B.Search and replace
3. C.Explicit
4. D.Clip art

Which approach is more likely to be successful in applications that process very high volumes of data?

1. A.Prototyping with fourth generation language
2. B.Total system development with a fourth generation language
3. C.Structured development
4. D.Traditional development

What frequency range is used for micro-wave communications, satellite and radar?

1. A.Extremely high frequency : 30,000 MHz
2. B.Super high frequency : 3000 MHz to 30000 MHz
3. C.Medium frequency : 300 kHz to 3 MHz
4. D.Low frequency : 30 KHz to 300 kHz

Which of the following has the smallest default maximum physical receive packet size?

1. A.Token Ring [4 Mbps]
2. B.Token Ring [16 Mbps]
3. C.ARC net
4. D.Ethernet

Which of the following assertions is FALSE about the Internet protocol (IP)?

1. A.The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way
2. B.IP ensures that a packet is discarded if it is unable to reach its destination within a given number of hops
3. C.IP packets from the same source to the same destination can take different routes in the network
4. D.It is possible for a computer to have multiple IP addresses

One of the header fields in an IP datagram is the Time-to-live (TTL) field. Which of the following statements best explains the need for this field?

1. A.It can be used to prevent packet looping
2. B.It can be used to optimize throughput
3. C.It can be used to reduce delays
4. D.It can be used to prioritize packets

Which of the following is not relevant to networking?

1. A.Bus hubs
2. B.Mesh network
3. C.Stackable hubs
4. D.Low-end stand alone hubs

The distinguishable parts of a record are called

1. A.Fields
2. B.Files
3. C.Data
4. D.All of these

The command to convert a numeric number to characters is

1. A.STR ()
2. B.CHR ()
3. C.ASC ()
4. D.All of these

Which normal form is considered adequate for normal relational database design?

1. A.2 NF
2. B.3 NF
3. C.4 NF
4. D.5 NF

One approach to standardizing storing of data is

1. A.CODASYL specifications
2. B.Structured programming
3. C.MIS
4. D.None of these

The command that add a new field to an active database is

1. A.MODIFY STRUCTURE
2. B.MODIFY COMMAND
3. C.MODIFY REPORT
4. D.MODIFY LABEL

Which of the following component of a computer system is the most important to a database management system?

1. A.High speed, large capacity disk
2. B.High resolution video display
3. C.Mouse
4. D.Printer

In a relational schema, each tuple is divided into fields called

1. A.Domains
2. B.Queries
3. C.Relations
4. D.None of these

An indexing operation

1. A.Establishes an index for a file
2. B.Sorts a file using two keys
3. C.Sorts a file using a single key
4. D.Both (b) and (c)

The modify operation is likely to be done after

1. A.Insert
2. B.Delete
3. C.Look-up
4. D.None of these

What is the name given to the last line or a paragraph which is printed at the top of a page?

1. A.Page break
2. B.Widow
3. C.Orphan
4. D.Header