CCENT Final Practice Exam 4 — 22 Question Set

Posted on September 9, 2009. Filed under: CCNA |


Answers and Explanations

01. Why would a network administrator configure port security on a switch?
(A) to prevent unauthorized Telnet access to a switch port
(B) to limit the number of Layer 2 broadcasts on a particular switch port
(C) to prevent unauthorized hosts from accessing the LAN
(D) to protect the IP and MAC address of the switch and associated ports
(E) to block unauthorized access to the switch management interfaces over common TCP ports
 

02. Which form of NAT maps multiple private IP addresses to a single registered IP address by using different ports?
(A) static NAT
(B) dynamic NAT
(C) overloading
(D) overlapping
(E) port loading
 

03. What should be part of a comprehensive network security plan?
(A) Allow users to develop their own approach to network security
(B) Physically secure network equipment from potential access by unauthorized individuals
(C) Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten
(D) Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported
(E) Minimize network overhead by deactivating automatic antivirus client updates
 

04. Which of the following commands will configure a default route to any destination network not found in the routing table?
(A) Router(config)# ip default-route 0.0.0.0 255.255.255.255 s0
(B) Router(config)# ip route 0.0.0.0 255.255.255.255 s0
(C) Router(config)# ip default-route 0.0.0.0 s0
(D) Router(config)# ip route 0.0.0.0 0.0.0.0 s0
(E) Router(config)# ip route any any e0
 

05. For security reasons, information about RTA, including platform and IP addresses, should not be accessible from the Internet. This information should, however, be accessible to devices on the internal networks of RT A. Which command or series of commands will accomplish these objectives?
(A) RTA(config)#no cdp run
(B) RTA(config)#no cdp enable
(C) RTA(config)#interface s0/0
RTA(config-if)#no cdp run
(D) RTA(config)#interface s0/0
RTA(config-if)#no cdp enable
 

06. What is the purpose of flow control?
(A) to ensure data is retransmitted if an acknowledgment is not received
(B) to reassemble segments in the correct order at the destination device
(C) to provide a means for the receiver to govern the amount of data sent by the sender
(D) to regulate the size of each segment
 

07. Host A has established a communication session with host B for the first time. What enabled R1 to forward this traffic in the appropriate direction to reach the nework to which host B is attached?
(A) DNS
(B) DHCP
(C) TCP/IP
(D) a Layer 4 protocol
(E) a routing protocol
(F) a default gateway
 

08. What does the “Inside Global” address represent in the configuration of NAT?
(A) the summarized address for all of the internal subnetted addresses
(B) the MAC address of the router used by inside hosts to connect to the Internet
(C) a globally unique, private IP address assigned to a host on the inside network
(D) a registered address that represents an inside host to an outside network
 

09. How many simultaneous Telnet sessions does a Cisco router support by default?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
(F) 6
 

10. which prompt is the global configuration mode on a Cisco router identified?
(A) Router>
(B) Router#
(C) Router(config)#
(D) Router(config-if)#
(E) Router(config-line)#c
(F) Router(config-router)#
 

11. Host A is communicating with the server. What will be the source MAC address of the frames received by Host A from the server?
(A) the MAC address of router interface e0
(B) the MAC address of router interface e1
(C) the MAC address of the server network interface
(D) the MAC address of host A
 

12. Which IP address is a private address?
(A) 12.0.0.1
(B) 168.172.19.39
(C) 172.20.14.36
(D) 172.33.194.30
(E) 192.169.42.34
 

13. Which encryption type does WPA2 use?
(A) AES-CCMP
(B) PPK via IV
(C) PSK
(D) TKIP/MIC
 

14. Which of the following protocols uses both TCP and UDP ports?
(A) FTP
(B) SMTP
(C) Telnet
(D) DNS
 

15. Three access points have been installed and configured to cover a small office. What term defines the wireless topology?
(A) BSS
(B) IBSS
(C) ESS
(D) SSID
 

16. Which command is used on a Cisco router to reach the global configuration mode?
(A) Router> enable
(B) Router# router
(C) Router# setup
(D) Router# interface
(E) Router# configure terminal
 

17. Which command will set the default gateway to 192.168.12.1 on a Cisco switch?
(A) Switch(config)# ip default-network 192.168.12.1
(B) Switch(config)# ip route-default 192.168.12.1
(C) Switch(config)# ip default-gateway 192.168.12.1
(D) Switch(config)# ip route 192.168.12.1 0.0.0.0
 

18. What is the effect of using the service password-encryption command?
(A) Only the enable password will be encrypted
(B) Only the enable secret password will be encrypted
(C) Only passwords configured after the command has been entered will be encrypted
(D) It will encrypt the secret password and remove the enable secret password from the configuration
(E) It will encrypt all current and future passwords
 

19. What is the purpose of a default route?
(A) It is a route to be used when the routing protocol fails
(B) It is a route configured by an ISP that sends traffic into a corporate network
(C) It is a route used when a packet is destined for a remote network that is not listed in the routing table.
(D) It is a route manually configured for a specific remote network for which a routing protocol is not configured.
(E) It is used to send traffic to a stub network.
20. Workstation A must be able to telnet to switch SW-A through router RTA for management purposes. What must be configured for this connection to be successful?
(A) VLAN 1 on RTA
(B) default gateway on SW-A
(C) IP routing on SW-A
(D) cross-over cable connecting SW-A and RTA
21. At which layer of the OSI model does the protocol that provides the information displayed by the show cdp neighbors command operate?
(A) physical
(B) data link
(C) network
(D) transport
(E) application
22. Serial0/0 does not respond to a ping request from a host on the FastEthernet0/0 LAN. How can this problem be corrected?
(A) Enable the Serial 0/0 interface
(B) Correct the IP address for Serial 0/0
(C) Correct the IP address for FastEthernet 0/0
(D) Change the encapsulation type on Serial 0/0
(E) Enable autoconfiguration on the Serial 0/0 interface

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