CCNA Study Set 4

Refer to the exhibit. An extended ACL has been configured and applied to router R2. The configuration failed to work as intended. Which two changes stop outbound traffic on TCP ports 25 and 80 to 10.0.20.0/26 from the 10.0.10.0/26 subnet while still allowing all other traffic? (Choose two) R2#config tR2(config)#access-list 101 deny tcp 10.0.20.0 0.0.0.63 10.0.10.0 0.0.0.63 eq smtpR2(config)#access-list 101 deny tcp 10.0.20.0 0.0.0.63 10.0.10.0 0.0.0.63 eq wwwR2(config)#int gi0/2R2(config-if)#ip access-group 101 in

Add a "permit ip any any" statement at the end of ACL 101 for allowed traffic The source and destination IPs must be swapped in ACL 101

What is the primary difference between AAA authentication and authorization?

Authentication identifies and verifies a user who is attempting to access a system, and authorization controls the tasks the user can perform

Refer to the exhibit. What is the effect of this configuration? ip arp inspection vlan 2 interface fastethernet 0/1 switchport mode access switchport access vlan 2

The switch discard all ingress ARP traffic with invalid MAC-to-IP address bindings

Refer to the exhibit. What is the effect of this configuration? ip arp inspection vlan 2 interface fastethernet 0/1 switchport mode access switchport access vlan 2

The switch port interface trust state becomes untrusted

Refer to the exhibit. A network engineer must block access for all computers on VLAN 20 to the web server via HTTP. All other computers must be able to access the web server. Which configuration when applied to switch A accomplishes this task?

config t ip access-list extended wwwblock deny tcp any host 10.30.0.100 eq 80 permit ip any any int vlan 20ip access-group wwwblock in

Refer to the exhibit. Which password must an engineer use to enter the enable mode? Atlanta#config t Atlanta(config)#aaa new-model Atlanta(config)#aaa authentication login default local Atlanta(config)#line vty 0 4 Atlanta(config-line)#login authentication default Atlanta(config-line)#exit Atlanta(config)#username ciscoadmin password adminadmin123 Atlanta(config)#username ciscoadmin privilege 15Atlanta(config)#enable password cisco123 Atlanta(config)#enable secret testing1234 Atlanta(config)#end

testing1234

AAA stands for authentication, authorization, and accounting.

True

Which effect does the aaa new-model configuration command have?

It enables AAA services on the device.

How do TCP and UDP differ in the way that they establish a connection between two endpoints?

TCP uses the three-way handshake and UDP does not guarantee message delivery