What is the authoritative source for an address lookup?

• A.a recursive DNS search
• B.the operating system cache
• C.the ISP local cache
• D.the browser cache

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Drag and Drop Question
Drag and drop the functions of AAA supporting protocols from the left onto the protocols on the right.

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A packet is destined for 10.10.1.22. Which static route does the router choose to forward the packet?

• A.ip route 10.10.1.0 255.255.255.240 10.10.255.1
• B.ip route 10.10.1.20 255.255.255.252 10.10.255.1
• C.ip route 10.10.1.16 255.255.255.252 10.10.255.1
• D.ip route 10.10.1.20 255.255.255.254 10.10.255.1

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How do TCP and UDP differ in the way they provide reliability for delivery of packets?

• A.TCP is a connectionless protocol that does not provide reliable delivery of data; UDP is a connection- oriented protocol that uses sequencing to provide reliable delivery.
• B.TCP uses windowing to deliver packets reliably; UDP provides reliable message transfer between hosts by establishing a three-way handshake.
• C.TCP provides flow control to avoid overwhelming a receiver by sending too many packets at once, UDP sends packets to the receiver in a continuous stream without checking.
• D.TCP does not guarantee delivery or error checking to ensure that there is no corruption of data, UDP provides message acknowledgement and retransmits data if lost.

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Drag and Drop Question
Drag and drop the characteristics from the left onto the technology types on the right.

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