What field tells the Internet layer how to handle an IP packet? A. Type of Service B. Identification C. Flags D. Frag Offset

Which fields of an IP packet provide for fragmentation of datagrams to allow differing MTUs in the internet? A. Identification B. Flags C. Frag Offset D. Type of Service E. Total Length

Which processes does TCP, but not UDP, use? A. Windowing B. Acknowledgements C. Source Port D. Destination Port

Lucent,

What is the UDP datagram format? A. Source Port - 16 bits, Destination Port - 16 bits, Length - 16 Bits, Checksum - 16 bits, Data B. Destination Port - 16 bits, Source Port - 16 bits, Length - 16 Bits, Checksum - 16 bits, Data C. Source Port - 16 bits, Destination Port - 16 bits, Checksum - 16 Bits, Length - 16 bits, Data D. Source Port - 8 bits, Destination Port - 8 bits, Length -8 Bits, Checksum - 8 bits, Data

What is the function of DDR on Cisco routers? A. DDR is dial--on-demand routing. It provides a continuous LAN only connection. B. DDR is dial-on-demand routing. It provides routing for high volume traffic. C. DDR is dial--on-demand routing. It provides a continuous WAN connection. D. DDR is dial-on-demand routing. It provides routing for low volume and periodic traffic.

What are the two types of access lists that can be configured on a Cisco router? A. Standard B. Extended C. Filtering D. Packet

When using access lists, what does a Cisco router check first? A. To see if the packet is routable or bridgeable B. The destination address C. The source address D. The packet contents

How many access lists are allowed per interface? A. One per port, per protocol B. Two per port, per protocol C. Unlimited D. Router interface +1 per port.

What do the following commands accomplish? access-list 1 deny 172.16.4.0 0.0.0.255 access-list 1 permit any interface ethernet 0 IP access-group 1 out A. This will block traffic from subnet 172.16.4.0 and allow all other traffic. B. This will allow traffic from subnet 172.16.4.0 and block all other traffic. C. All traffic is allowed. D. All traffic is blocked.

What do the following statements in an extended access list accomplish? access-list 101 deny TCP 172.16.4.0 0.0.0.255 172.16.3.0 0.0.0.255 eq 21 access-list 101 deny TCP 172.16.4.0 0.0.0.255 172.16.3.0 0.0.0.255 eq 20 access-list 101 permit TCP 172.16.4.0 0.0.0.255 0.0.0.0 255.255.255.255 A. This will block ftp traffic. B. This will block http traffic. C. This will permit ftp traffic. D. This will permit tftp traffic.

Access lists are numbered. Which of the following ranges could be used for an IP access list? A. 600 - 699 B. 100 - 199 C. 1 - 99 D. 800 - 899 E. 1000 - 1099

Cisco routers use wildcard masking to identify how to check or ignore corresponding IP address bits. What does setting a wildcard mask bit to 0 cause the router to do? A. It tells the router to check the corresponding bit value. B. It tells the router to ignore the corresponding bit value. C. It tells the router to check its alternate routing list. D. It tells the router to use its primary routing list.

You are a system administrator and you want to deny access to a group of computers with addresses 172.30.16.0 to 172.30.31.0. Which wildcard mask would you use? A. 0.0.15.255 B. 0.0.255.255 C. 0.0.31.255 D. 0.0.127.255 E. 0.0.255.255

In order to limit the quantity of numbers that a system administrator has to enter, Cisco can use which abbreviation to indicate 0.0.0.0? A. host B. any C. all D. include

What do the following commands accomplish? access-list 1 permit 172.16.0.0 0.0.255.255 interface ethernet 0 IP access-group 1 out interface ethernet 1 IP access-group 1 out A. Only traffic from the source network 172.16.0.0 will be blocked. B. Only traffic from the source network 172.16.0.0 will be forwarded. Non-172.16.0.0 network traffic is blocked. C. Non-172.16.0.0 traffic will be forwarded. D. All traffic will be forwarded.