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CCNA 4 Chapter 8

1 . What combination of IP address and wildcard mask should be used to specify only the last 8 addresses in the subnet 192.168.3.32/28? 192.168.3.32 0.0.0.7 192.168.3.32 0.0.0.15 192.168.3.40 0.0.0.7 192.168.3.40 0.0.0.15 2 . Excessive broadcasts are generally a symptom of a problem at which layer? physical data link network transport 3 . Refer to the exhibit. Which three pieces of information can be determined by analyzing the output shown? (Choose three.) A carrier detect signal is present. Keepalives are being received successfully. Default encapsulation is used on this serial link. Packets passing this interface cannot exceed 1 KB in size. The reliability of this link is very low. The LCP negotiation phase is complete. 4 . A network administrator has received complaints that users on a local LAN can retrieve e-mail from a remote e-mail server but are unable to open web pages on the same server. Services at which two layers of the OSI model should be investigated during the t

CCNA3 Final 2010

Link to this site if you copy my content. Thank Petter ! 1 . Which security protocol or measure would provide the greatest protection for a wireless LAN? WPA2 cloaking SSIDs shared WEP key MAC address filtering 2 . Refer to the exhibit. All trunk links are operational and all VLANs are allowed on all trunk links. An ARP request is sent by computer 5. Which device or devices will receive this message? only computer 4 computer 3 and RTR-A computer 4 and RTR-A computer 1, computer 2, computer 4, and RTR-A computer 1, computer 2, computer 3, computer 4, and RTR-A all of the computers and the router 3 . Refer to the exhibit. Hosts A and B, connected to hub HB1, attempt to transmit a frame at the same time but a collision occurs. Which hosts will receive the collision jamming signal? only hosts A and B only hosts A, B, and C only hosts A, B, C, and D only hosts A, B, C, and E 4 . Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.65 and a destinatio

CCNA4 Final 2010

1 Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router? PPP SLIP HDLC Frame Relay 2 What is a characteristic feature of a worm? exploits a known vulnerability attaches to executable programs masquerades as a legitmate program lies dormant until triggered by an event, time, or date 3 An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem? When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology. Incorrect IPv4 addresses are entered on the router