Question: An end-to-end path from Host A to Host B consists of three links of rates R1=5 Mbps, R2=1 Gbps, and R3=10 Mbps. Suppose there is

  1. An end-to-end path from Host A to Host B consists of three links of rates R1=5 Mbps, R2=1 Gbps, and R3=10 Mbps. Suppose there is no other traffic sharing these links with Host A and Host B. The throughput between A and B is

  1. 1 Mbps

  1. 10 Mbps

  1. 5 Mbps

  1. 1 Gbps

  1. Which of the following is not true about persistent HTTP:

  1. Persistent HTTP is supported by default in HTTP/1.1.

  1. Persistent HTTP allows one TCP connection to be used for multiple HTTP requests.

  1. Persistent HTTP can be faster than non-persistent HTTP.

  1. If a HTTP response from a Web server contains header field Connection: close, it means the Web server supports persistent HTTP.

  1. Which of the following levels does a DNS name server for .com domain belong to

  1. root name servers

  1. top-level domain name servers

  1. authoritative name servers

  1. local name servers

  1. Which of the options uses a peer-to-peer (P2P) protocol?

  1. BitTorrent

  1. Hypertext Transfer Protocol (HTTP)

  1. Domain name system (DNS)

  1. User Datagram Protocol (UDP)

  1. Which of the following statements about TCP is not true:

  1. It is connection-oriented

  1. It has a shorter header than UDP

  1. It provides error-free data transmission

  1. It regulates the senders sending rate

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