Module 15 Quiz

Question 7 options: www index .com http Question 8 (1 point) What is the purpose of the DNS application? Question 8 options: translate a private host name (ie URL) into a public host name (ie URL). translate a private IP address into a public IP address all of the above translate a host name (ie URL) into an IP address Question 9  (2 points)   When an application passes a block of data to the network interface, it also selects whether to send the data using TCP or UDP.  Which types of applications use UDP? (select 2) Question 9 options: applications which depend on the network for congestion and flow control file transfer applications which require zero data loss and no misordering interactive applications including voice and video conferencing which are tolerant to small levels of loss short session, transactional applications such DNS and DHCP where the application can recover from packet loss. Next Page Answers 1. 1. A: The DHCP server offers an IP address to the requesting node 1 . 2. 2 . A, D, F: All hosts receive the message, but only a DHCP server replies 2 . The destination IP address is 255.255.255.255 2 . The message comes from a client seeking an IP address 2 . 3. 3. B: Port 21 is used for control traffic while port 20 is used for user data traffic 3 . 4. 4. A: Port 80 is used for unsecured data transfer while port 443 is used for secured data transfer 4 5 . 5. 5. A: Defines the content and formatting of client requests and server responses 6 . 6. 6. A, C: DNS - resolves Internet names to IP addresses 7 . Telnet - provides remote access to servers and networking devices 7 . 7. 7. C: .com 8 .