Answer: C) TCP Explanation: Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.

Answer: D) Niece or Daughter Explanation:

Answer: A) Because it was thought to be the first computer so named with first alphabets of English Explanation:

Answer: C) Inertia Explanation: To rotate is to energy to stop is to inertia. From the definition itself we know that inertia is a property by virtue of which a body continues to be in the state of rest or in state of motion. So over here whenever energy is supplied then the body starts to move that is a displacement is there and it is rotating where as whenever the body is stopped an inertia of rest is created.   So, Rotate : Energy :: Stop : Inertia.

Answer: B) Sleep Explanation: Marathon is to Race as Hibernation is to Sleep.   Marathon is a long race in the similar way Hibernation refers to a long sleep.

Answer: B) Petrol Explanation:

Answer: C) Blueberries Explanation: Blueberries are the saddest fruits.   Reason :: In English some colors are associated with feelings. Blue is associated with sadness. When you "feel blue" it means that you are feeling sad.   Hence, as blueberries has blue in its name it indicates that that is the saddest fruit in logic.