Computer Studies JAMB, WAEC, NECO AND NABTEB Official Past Questions

What is the term for the unauthorized modification of data within a database by exploiting vulnerabilities in an application’s software?
 

What was the primary advancement of the EDVAC over the ENIAC?

What is the relationship between a ‘record’ and a ‘file’?
 

Which stage of the SDLC involves evaluating the system to ensure it meets user needs and making necessary adjustments?

Which key on a keyboard is used to access special functions like volume control or brightness?

Which of the following best describes the SDLC?

Which of the following best describes software?
 

Which application package is used for developing websites?

Which access method is least efficient for data retrieval?
 

What does the ‘Thesaurus’ feature in word processing packages help users with?

Which type of computer functions as a central repository, providing hardware, software, and other resources to multiple clients connected over a network?
 

a – A principal asked the secretary to typeset a document containing some confidential information in Microsoft Word. The principal wants the document to be typed in such a way that when it is opened, the confidential information will be hidden from other users.

Highlight the steps the secretary would take to hide the confidential information in the document.

b – A principal asked the secretary to typeset a document containing some confidential information in Microsoft Word. The principal wants the document to be typed in such a way that when it is opened, the confidential information will be hidden from other users.
Outline the steps the principal would take to display the hidden text in 3(a) for viewing.

a – Table 1 shows the specification of two laptop computers. Use the table to answer questions 2(a) and 2c .
 

A journalist makes long trips by train as part of official assignments. The journalist also needs to make live communication with editors.

Which of the two laptop computers is more suitable for this journalist?

b – A journalist makes long trips by train as part of official assignments. The journalist also needs to make live communication with editors.
State three features of the chosen laptop in 2(a) that makes it better.

c – A journalist makes long trips by train as part of official assignments. The journalist also needs to make live communication with editors.
Give one reason for choosing each of the features stated in 2(b)

(i) The home network of a family has internet access. A server configured to control user access to the network.

State two problems that will likely happen if the children in the family have uncontrolled access to the internet

(ii) The home network of a family has internet access. A server configured to control user access to the network.
Suggest how the problems in 1(a)(i) can be prevented.

1(b) The home network of a family has internet access.

      A server configured to control user access to the network.

     Give one reason for the user control access

c(i) To have access to the network, each user logs in with a username and password. The flowchart in Figure 1 illustrates the authentication process required to log in. Use the information below to complete the flowchart by placing the letters A to E in the appropriate flowchart symbol numbered (i) to (v) :
 

A – “Please, enter password to log in”
B – Is the username found?
C – Search the username in the database.
D – Check the password.
E – Enter the username.

(i) ___________________________________________

c(ii) A – “Please, enter password to log in”

      B – Is the username found?

      C – Search the username in the database.
      D – Check the password.
      E – Enter the username.

(ii) ___________________________________________

c(iii) A – “Please, enter password to log in”
       B – Is the username found?
       C – Search the username in the database.
       D – Check the password.
       E – Enter the username.

(iii)___________________________________________

c(iv)  A – “Please, enter password to log in”
        B – Is the username found?
        C – Search the username in the database.
        D – Check the password.
        E – Enter the username.

(iv) ___________________________________________

c(v) A – “Please, enter password to log in”
      B – Is the username found?
      C – Search the username in the database.
      D – Check the password.
      E – Enter the username.

(v) ___________________________________________

The process of making copies of files which can be used to restore the original copy in the event of data loss is called file

Stored instructions and data in digital computer consist of

A program that converts source code instructions in high-level programming language to object codes line by line is known as

Datatypes in QBASIC programming language include the following except

The database model that uses tables with columns and rows is called

Which of the following actions is not an animation in Microsoft PowerPoint?

Viruses, worms and Trojan horses are regarded as