Ganiyu Olatunbosun online class

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REMINDER! REMINDER!! REMINDER!!!

NOTIFICATION OF 25TH EDITION OF JETS' COMPETITION

The Quiz Competition for Senior School Learners would be based on the following subjects: Mathematics, Chemistry, Physics, Biology, Agricultural Science, Computer and Technology while that of Primary and Junior School Learners would be based on: Mathematics, Basic Science, Technology, Computer and Agricultural Science.

Zonal level: Wednesday 12th October, 2022

Venue: All ZEO Offices in Ogun State.

Time: 9 am

*WAEC SSCE PAST QUESTIONS AND ANSWERS*

*QUESTIONS*
(a) (i) Define the term encryption.
(ii) Pick two authentication techniques involved in security measure from the options below

Firewall
Biometric
Password
Intranet

(iii) Outline two features of data encryption.

(b) While exchanging data with a friend through your mobile phone, you observed that it took a longer time than usual. Outline four factors that may be responsible for the delay in the data transfer.

*ANSWERS*
(a) (i) encryption is the conversion of electronic data into another form which cannot be easily understood by anyone else except authorized parties.
OR
Encryption is the process of using an algorithm to transform/convert information to make it unreadable for unauthorized user(s)
OR
Encryption is the coding of information in order to keep it secret from unauthorized user(s)
OR
Encryption is the process of transforming data into unintelligible form in such a way that the original data either cannot be obtained or can be obtained only by using a decryption process

(ii)
Biometric
Password

(iii) Features of Data Encryption

- a key is needed to decrypt data
- only authorized user can understand the data
- it makes computer access difficult
- it prevents virus
- involves use of algorithm
- data is encoded

(b) Factors responsible for the delay in data transfer

- Network traffic
- Size of data
- Bandwidth
- Cell reception
- Baud rate
- Distance between the phones
- Alignment of the phones
- Attenuation
- Types of application in use on both phones
- Limited storage capacity
- Virus infection/attack
- Network signal strength
- Ram capacity

Coming soon.

Ganiyu Olatunbosun online class Education

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Ganiyu Olatunbosun online class Education