विश्व डाक दिवस की शुरुआत 09 अक्टूबर1969 में हुई थी। उसके बाद हर साल 9 अक्टूबर को विश्व डाक दिवस मनाया जाता है।

सर रॉलैंड हिल ने ही पहली बार दुनिया में अंतर्राष्ट्रीय डाक सेवा की शुरू की थी।

Answer: C) Router (config - if) #encapsulation frame-relay ietf Explanation: If you have a Cisco router on one side of a Frame Relay network and a non-Cisco router on the otherside, you would need to use the Frame Relay encapsulation type of IETF. The default is Cisco encapsulation, which means that a Cisco router must be on both sides of the Frame Relay PVC.

Answer: D) EIGRP Explanation: In this question, we're calling EIGRP just plain old distance vector. EIGRP is an advanced distance-vector routing protocol, sometimes called a hybrid routing protocol because it uses the characteristics  of both distance-vector and link-state routing protocols.

Answer: A) Rs. 28,000 Explanation: Investments ratio is = 3:1Time period ratio is = 2:1 As they are proportional to gain ------Gain ratio of Vishal and raghu = 6:1 But given Raghu got Rs. 4000,  =? 1 ----- 4000     7 -----    ? => Rs.28,000 The total gain = Rs.28,000

Answer: A) Longitudinal waves Explanation: Compressions and Rarefactions are characteristic of Longitudinal waves. The direction of vibration of the particles is in the same plane as in which the wave is propagating. The particles vibrate back and forth, about their mean positions.