Q42
You are the network administrator at CertKing . The network is shown in the following exhibit:

HostA needs to communicate with the email server attached to Switch2.
What address will be placed in the destination address field of the packet when it leaves Host A?A. Switch1's IP address.B. Switch2's IP address.C. HOST A's IP address.D. The E0 interface's IP address.E. The E1 interface's IP address.F. The email server's IP address.Ans: F
Reference:
CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) Page 26


Q43
You are a technician at CertKing . You tell your newly appointed CertKing trainee about CDP and that it
is enabled by default on all Cisco routers. Your trainee wants to how you would disable CDP on a router.
What would your reply be?A. Issue the router(config)# no cdp run command.B. Issue the router(config-if)# no cdp enable command.C. Issue the router(config-if)# no cdp command.D. Issue the router(config-if)# cdp disable command.Ans: A

Explanation:
The no cdp run global command disables CDP for the entire device.
Reference:
CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) Page 393


Q44
You are the network administrator at CertKing . The network topology for the CertKing network is
shown in the following exhibit:
Which types of cables are required to interconnect the device in the CertKing network? (Choose three.)A. V.35 cableB. Crossover cableC. USB cableD. RJ-11 cableE. Rollover cableF. Straight-through cableAns: A D E


Q45
Which of the following applications use the UDP protocol? (Choose all that apply.)A. FTPB. DHCPC. HTTPD. SNMPE. SMTPAns: B, D

Explanation:
B: DHCP uses UDP ports 67 and 68
D: SNMP uses UDP port 161
Incorrect Anss:
A: FTP uses TCP port 21
C: HTTP uses TCP port 80
E: SMTP uses TCP port 25
Reference:
CertKing 640-821 Study Guide, Appendix B, "Common TCP and UDP Ports Assignments"


Q46
Which of the following statements are true?A. Each pair of wires in a UTP cable is wrapped in a metallic foil.B. The four pairs of wires in a UTP cable are wrapped in a metallic braid or foil.C. UTP uses RJ-11 connectors.D. UTP uses RJ-45 connectors.E. UTP is immune to EMI.Ans: D

Explanation:
UTP cables use Regulated Jack 45 (RJ-45) connectors. It has a maximum length of 100 m and a maximum
transmission speed of 1 Gbps. It is east to install but is susceptible to eavesdropping and electro-magnetic
interference (EMI)
Reference:
CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press, ISBN 1-58720-094-5) Page 306


Q47
You are the network administrator at CertKing . You want to connect a 100Base-T network to a router.
To which of the following interfaces can you connect the network?A. SerialB. ISDN BRIC. ConsoleD. WICE. EthernetAns: E

Explanation:
100Base-T networks are Ethernet networks.


Q48
You are a technician at CertKing . Your newly appointed CertKing trainee wants to know which address
routers use to forward packets across WAN links that transverse the Internet.
What would your reply be?A. The logical address.B. The source MAC address.C. The destination IP address.D. The destination MAC address.Ans: C

Explanation:
The Internet uses TCP/IP.