Explanation

ISDN is a set of communication standards for simultaneous digital transmission of voice, video, and data.

It allows faster and more reliable connectivity than traditional analog systems.

Explanation

John Dewey is known as the father of the activity-based curriculum due to his emphasis on learning by doing.

He believed education should be child-centered and connected to real-life experiences.

Explanation

The phrase accustomed ended with “To” and is  followed by “ing” form of a verb.

Accustomed to something means کسی چیز کا عادی ہونا

I am not accustomed to being interrupted. 

Explanation

"They are waiting for you" correctly uses the verb "waiting" followed by the preposition "for" to show whom they are waiting.

They are waiting for you means وہ آپ کا انتظار کر رہے ہیں

Explanation

"According to" is a prepositional phrase that shows the relationship between the students' actions and the teacher's instructions.

It functions to modify the verb "act" by explaining how the students act.

Explanation

A switch operates at the Data Link Layer (Layer 2) of the OSI model.

It uses MAC addresses to forward data frames within a local network.

Explanation

Dot pitch (also known as pixel pitch) is the distance between two same-colored pixels on a screen.

A smaller dot pitch means a sharper and clearer display quality.

Explanation

Blu-ray disk is a type of optical storage that uses laser technology to read and write data.

It stores high-definition video and large data.

Unlike floppy disks and hard disks which are magnetic storage devices.

Explanation

Feature Virtual Memory

Location: On the hard drive or SSD

Speed: Slower (due to disk I/O operations)

Capacity: Larger, limited by disk space

Cost: Lower (cost of additional disk storage)

Explanation

معاشرت سے مراد ہے دوسروں کے ساتھ مل جل کر زندگی بسر کرنا یا سماجی زندگی گزارنا۔

یہ ایک فرد کے اجتماعی طور پر رہنے سہنے کے انداز کو ظاہر کرتا ہے۔