Explanation

• In a Star Network Topology, each network node (computer, printer, etc.) is connected to a central device called a hub or switch.
• This central device acts as a connection point for all the nodes, and data transmission occurs through it. 
• This topology is called a star topology because the connections resemble a star, with the hub at the center and the nodes at the points.

Explanation

• The four layers of the TCP/IP stack (also called the DoD model) are Application/Process, Host-to-Host, Internet, and Network Access.
• The Host-to-Host layer is equivalent to the Transport layer of the OSI model.

Explanation

"Security can be set through passwords, kerberos tickets, or certificates, Secure access to your EC2 AMIs is controlled by passwords, Kerberos, and 509 certificates, and Most of the system image templates that Amazon AWS offers are based on Red Hat Linux." all are the correct statements.

Explanation

• The `--log-bin-index` option is used to enable the binary log index file in MySQL.
• This option allows you to specify the name of the index file that stores the binary log file names.

Explanation

• Google Language Translator is a machine learning-based application that uses artificial intelligence to translate text from one language to another.
• It is an example of a natural language processing (NLP) application, which is a subfield of machine learning.

Explanation

For a song is an idiom which means کم قیمت، سستا دام

Explanation

'infrequent', is an adjective which means 'not occurring often/ rare'.

As it means the same as 'rare', 

Explanation

"Burn the candle at both ends" means دولت ضائع کرنا 

For example: Young people like to enjoy life and they often burn the candle at both ends.

Explanation

Abstruse means جو سمجھ نہ آسکے

Lucid means جو آسانی سے سمجھ آسکے

Explanation

Given sentence is a negative sentence of Present Perfect Tense and in active Voice.

Rule :
Subject + (has /have) + not + been + V3 + Other agents.