29 November 2021- Evening Shift- UGC NET Paper 1

Statement I: It is an attempt at preventing users from accessing part of a network, notably internet servers.
Statement II: It can be mitigated by using email filters.
In light of the above statements, choose the correct answer from the options given below

1. Use of a product key supplied with original software
2. Sign a licence agreement
3. Use of holograms on original packaging
4. Use of dongles to prevent illegal use.
Choose the correct answer from the options given below:

Network Security Technique Implementation Technique
List I
A. Symmetric encryption
B. Asymmetric encryption
C. Authentication
D. Denial of Service Avoidance
List II
I. Public and private key
II. Digital signature
III. Secret key
IV. Email filter
Choose the correct answer from the options given below:

Statement I: Summer smog is primarily associated with photochemical formation of ozone and other pollutants
Statement II: The Great Smog of London disaster, is a classic example of summer smog
In light of the above statements, choose the correct answer from the options given below

1. Protection of water resources
2. The conservation of biological diversity
3. Promotion of shifting agriculture
4. The sustainable use of biological components
5. Fair and equitable sharing of benefits arising from genetic resources
Choose the correct answer from the options given below:

Statement I: In waste water treatment systems, most of the large floating materials are removed in the screen chamber
Statement II: Colloidal and dissolved organic content of waste water are removed in the grit chamber
In light of the above statements, choose the most appropriate answer from the options given below

1.U-234
2. U-235
3. U-238
Choose the correct answer from the options given below