Computer Quiz

Q1. An E-R diagram is a graphic method of presenting ____
1) primary keys and their relationships
2) primary keys and their relationships to instances
3) entity classes and their relationships
4) entity classes and their relationships to primary keys
5) None of these

Q2. ________ is an invalid type of database key.
1) Structured primary key 
2) Atomic primary key
3) Primary key 
4) Composite primary key
5) None of these

Q3. A processor that collects the transmissions from several communications media and send them over a single line that operates at a higher capacity is called ______
1) multiplexer 
2) bridge 
3) hub
4) router 
5) None of these

Q4. Bandwidth refers to _______
1) the cost of the cable required to implement a WAN
2) the cost of the cable required to implement a LAN
3) the amount of information a peer-to-peer network can store
4) the amount of information a communications medium can transfer in a given amount of time
5) None of these

Q5. _________ is a primary key of one file that also appears in another file.
1) Physical key 
2) Primary key 
3) Foreign key
4) Logical key 
5) None of these

Q6. The technique that extends storage capacities of main memory beyond the actual size of the main memory is called _______
1) multitasking 
2) virtual storage
3) multiprocessing 
4) multiprogramming
5) switching

Q7. Customers, facilities, knowledge workers, business information, communication infrastructure and computer equipment are all considerations in a good _______ plan.
1) Hacker 
2) Disaster recovery
3) Security 
4) Risk management
5) None of these

Q8.Which of the following correctly defines the term E-Banking?

(A) It is the short form of Efficient Banking which means providing all banking related services to the customers in minimum required time during their visit to the branch.
(B) E-Banking is providing banking facilities to all the customers through ATMs only which restricts their visits to a bank branch to a bare minimum.
(C) E-Banking implies provisions of banking products and services through electronic delivery channels like ATMs, Phone, internet, mobile phones etc.
1) Only A 
2) Only B
3) Only C 
4) Only A & B
5) Only A & C

Q9. SMTP, FTP and DNS are applications of the ____ layer.
1) data link 
2) network 
3) transport
4) application 
5) None of these

Q10. In a database, information should be organized and accessed according to which of the following?
1) Physical position 
2) Logical structure
3) Data dictionary 
4) Physical structure
5) None of these

Answers:

1. 3
2. 1
3. 1
4. 4
5. 3
6. 2
7. 4
8. 3
9. 4
10. 2