My 21 CCNA2 brain dump (word by word)

1. Restrict access on interface e0

e0 = 128.12.22.55

deny access to telent FTP

all allow other type of operation

a. access list 101 end

b. access list 101 e0 telnet ftp

c. access list 101 allow all except ftp telnet

d. access list 101 ip 0.0.0.0 255.255.255.255 any

e. access list 101 ip 128.12.22.55 tcp eq 20 21 23

2. what is the command allow you to determine ip access list is enable on

a. # show ip int

b. > show access list

c. # show ip access list

d. > show int ip access lists

3. 2 type of route table entries are used by layer 3 router to determine the appropriate path to a destination (2 Ans)

a. static route entry

b. default route entry

c. dynamic route entry

d. Temperory route entry

e. Permanent route entry

4. which command retrieve a router configuration from NVRAM

a. config NVRAM

b. copy NVRAM running config

c. copy start-up config running config

d. copy running config start-up config

5. which one is the true statement

a. Ethernet 802.3 utilizes a half duplex method for data transfer

b. In 100m point to point connection, a full duplex connection can provide 400mbs of data transfer

c. Ethernet switch can use the full duplex mode to connect multiple nodes on a single port of a switch

d. Full duplex Ethernet takes advantage of UTP using one pair for transmission and the other pair for reception

6. which statement is true about Ethernet switch

a. Symmetric switching allow connection between part of unlike bandwidth and does not require memory buffering

b. memory buffering is used to prevent a bottleneck when port of different bandwidth are connected on a symmetric switch

c. the latency can reduce if the switch utilizes the store and forward method of switching. Store and forward is better error detection

d. the cut thru. Method switching is faster because the switch forward the packet to the destination as soon as it reads the destination address

7. which statement about flow control of TCP is true ?

a. TCP takes no effort to check for lost or duplicate data packet

b. The application layer must sequence data packet when using TCP

c. TCP contact the flow of UDP data thru negative ack (NAK)

d. TCP is a connection oriented protocol that ack receipt of data packet and is considered reliable

8. 2 steps are part of process to create frame relay subinterface on point-to-point network

a. configure the router to forward all broadcast packet

b. remove any network address assign to the physical interface

c. configure the local data link connect interface DLCI for the subinterface

d. partition the total CIR available among the subinterface

9. what command verifies encapsulation as well as layer 1 and layer 2 statistics on router configured for frame relay

a. show ip

b. show interface

c. show statistics

d. show frame relay

10. what are the 2 primary operation modes for frame switching (2 ans)

a. full duplex

b. half duplex

c. CSMA/CD

d. Cut thru.

e. Fragment free

f. Store and forward

11. which technology is used by catalyst switch to resolve topology loops and ensure data flow properly thru a single networked path

a. vlan

b. frame fileting

c. cut thru

d. STP

12. what statement about PPP is true

a. PPP support TCPIP not novell IPX

b. PPP is being phased out of existence by the SLIP

c. PPP provide router to router and host to network connection over both sync and async circuits

d. PPP is an ITU and ANSI standard that defines the process for sending data over a packet switched data network

13. what command would you use to enable IP RIP version 1 on a router

a. router rip/ network 172.16.1.0/network 10.1.0.0

b. router rip/ network 172.16.0.0/ network 10.0.0.0

c. router rip/ network 172.16.1.0 172.16.1.1/ network 10.1.0.0 10.1.1.1

d. router rip/ network 172.16.1.0 255.255.255.255/ network 10.10.0.0 255.255.255.255

14. what command enable directly connected network 199.55.72.0 to be used by RIP

a. # rip 199.55.0.0

b. # rip 199.55.72.0

c. # network 199.55.0.0

d. # network 199.55.72.0

15. ip host address 172.16.2.160 and the subnet is 255.255.255.192 which subnet is it belong ?

a. 172.16.2.32

b. 172.16.2.64

c. 172.16.2.96

d. 172.16.2.128

e. 172.16.2.192

16. what are 2 ways ipx support multiple logical network on an individual interface ?

a. network number

b. routing protocol

c. Encapsulation type

d. Autonomous system number

17. what is the disadvantage of TCP

a. packet ack may add over head

b. packet are not tagged with sequence no.

c. loss or duplicate of data packet is more likely to occur

d. the application layer must assume responsibility for correct sequencing of the data packet

18. what statement about bridge is true ?

a. a bridge floods multicast

b. a bridge floods broadcast

c. a bridge does not flood multicast

d. a bridge does not flood broadcast

19. what is not characteristics of network segment on a switch?

a. the segment has its own collision

b. the segment can translate from one media to different media

c. all device in the segment are part of the same broadcast domain

d. one device per segment can con currently send frames to the switch

20. which statement about ip network is true

a. broadcast source MAC address contain all 0

b. MAC address is part of physical layer of OSI model

c. MAC address are used by bridge to make forwarding decision. IP are used by a router

d. IP allow a flat addressing scheme and MAC address use a hierarchical address scheme

21. Class B address 172.35.21.15 … need to create no more than 126 hosts on a subnet that include this address. How to configure the IP address in Cisco IOS for subnet mask

a. 255.255.0.0

b. 255.255.128.0

c. 255.255.126.0

d. 255.255.255.128

e. 255.255.255.252

22. Which three statements about cisco's implementation of IP routing are true

 choose three)?

a. routers can learn next hops dynamicaly

b. ip routing is disabled by default on cisco routers.

c. routers can learn next hops through static routers.

d. entering ip route in global onfiguration mode enables ip routing

e. routers learn next hops by receiving periodic updates from other routers

23. which two statements about cisco routers are true? (choose two)

a. never connect a router with a U interface into an NT1

b. always connect a rotuer with a U interface into an NT1

c. if you see a connect labeled BRI, your router is a TE1

d. if you see a connector labeled BRI, your rotuer is a TE2

24. IPX servers advertise through ______ updates

a. SAP

b. RIP

c. NCP

d. NLCP

e. IGRP

f.  NLSP

25. Which three statements about flow control using connection-oriented

protocols are ture? (choose three)

a. if using TCP, a smaller window size will conserve available bandwidth.

b. a TCP host sends a packet with a window size of zero if its receive

buffers are full and it cannot receive any more data

c. if a source does not receive an acknowledgment it knows that the packets

should be retransmittted and that the transmission rate should be slowed

d. positive acknowledgment requires a recipient to communicate with the

source, sending back an ack. message when it receives data