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Which of the following QoS marking fields could remain with a packet while being sent through four different routers, over different LAN and WAN links (Choose two answers.)

A CoS

B. IPP

C. DSCP

D. MPLS EXP

Which of the following are available methods of classifying packets in DiffServ on Cisco routers? (Choose three answers.)

A. Matching the IP DSCP field

B. Matching the 802.1p CoS field

C. Matching fields with an extended IP ACL

D. Matching the SNMP Location variable

Which of the following behaviors is applied to a low latency queue in a Cisco router or switch?

Think about a policing function that is currently working, and also think about a shaping function that is also currently working. That is, the current bit rate of traffic exceeds the respective policing and shaping rates. Which statements are true about these features? (Choose two answers.)

A. The policer may or may not be discarding packets.

B. The policer is definetly discarding packets.

C. The shaper may or may not be queuing packets to slow down the sending rate.

D. The shaper is definetly queuing packets to slow down the sending rate.

A queuing system has three queues serviced with round robin scheduling and one low lattency queue that holds all voice traffic. Round robin queue 1 holds predominantly UDP traffic, while round robin queues 2 and 3 hold predominantly TCP traffic. The packets in each queue happen to have a variety of DSCP markings per the QoS design. In which ques would it make sense to use a congestion avoidance (drop management) tool? (Choose two answers.)

A. The LLQ

B. Queue 1

C. Queue 2

D. Queue 3

Router 1 has a Fast Ethernet interface 0/0 with IP address 10.1.1.1. The interface is connected to a switch. This connection is then migrated to use 802.1Q trunking. Which of the following commands could be part of a valid configuration for Router 1's Fa0/0 interface? (Choose two answers.)

Router R1 has a router-on-a-stick (ROAS) configuration with two subinterfaces of interface G0/1: G0/1.1 and G/01.2 Physical interface G0/1 is currently in a down/down state. The network engineer then configures a shutdown command when in interface configuration mode for G0/1.1, and a no shutdown command when in interface configuration mode for G0/1.2. Which answers are correct about the interface state for the subinterfaces? (Choose two answers.)

A. G0/1.1 will be in a down/down state.

B. G0/1.2 will be in a down/down state.

C. G0/1.1 will be in an administratively down state.

D. G0/1.2 will be in an up/up state.

A Layer 3 switch has been configured to route IP packets between VLANs 1, 2, and 3 using SVIs, which connects to subnets 172.20.1.0/25, 172.20.2.0/25, and 172.20.3.0/25, respectively. The engineer issues a show ip route connected command on the Layer 3 switch, listing the connected routes. Which of the following answers lists a piece of information that should be in at least one of the routes?

A. Interface Gigabit Ethernet 0/0.3

B. Next-hop router 172.20.2.1

C. Interface VLAN 2

D. Mask 255.255.255.0

An engineer has successfully configured a Layer 3 switch with SVIs for VLANs 2 and 3. Hosts in the subnets using VLANs 2 and 3 can ping each other with the Layer 3 switch routing the packets. Next wekk, the network engineer receives a call that those same users can no longer ping each other. If the problem is with the Layer 3 switching function, which of the following could have caused the problem? (Choose two answers.)

A. Six (or more) out of ten working VLAN 2 access ports failing due to physical problems

B. A shutdown command issued from another interface VLAN 4 configured mode

C. VTP on the switch removing VLAN 3 from switch's VLAN list

D. A shutdown command issued from VLAN 2 configuration mode

A LAN design uses a Layer 3 EthernetChannel between two switches SW1 and SW2, with Port-Channel interface 1 used on both siwtches. SW@1 uses ports G0/1, G0/2, and G0/3 in the channel. Which of the following are true about SW1's configuration to make the channel be able to route Ipv4packets correctly? (Choose two answers.)

A. The ip address command must be on the port-channel 1 interface.

B. The ip address command must be on interface G0/1 (lowest numbered port).

C. The port-channel 1 interface must be configured with the no switchport command.

D. Interface G0/1 must be configured with cthe routedport command.

A LAN design uses a Layer 3 EthernetChannel between two switches SW1 and SW2, with port-channel interface 1 used on both switches. SW1 uses ports G0/1 and G0/2 in the channel. However, only interface G0/1 is bundled into the channel and working. Think about the configuration settings on port G0/2 that could have existed before adding G0/2 to the EtherChannel. Which answers identify a setting that could prevent IOS from adding G0/2 to the Layer 3 EtherChannel? (Choose two answers.)

A. A different STP cost (spanning-tree cost value)

B. A different speed (speed value)

C. A default setting for switchport (switchport)

D. A different access VLAN (switchport access vlan vlan-id)

R1 and R2 attach to the same Ethernet VLAN, with subnet 10.1.19.0/25, with addresses 10.1.19.1 and 10.1.19.2, respectively, configured with the ip address interface subcommand. Host A refers to 10.1.19.1 as its default router, and host B refers to 10.1.19.2 as its default router. The router do not use an FHRP. Whic of the following is a problem for this LAN?

A. The design breaks IPv4 addressing rules, because two routers cannot connect to the same LAN subnet.

B. If one router fails, neither host can send packets off-subnet.

C. If one router fails, both hosts will use the one remaining router as a default router.

D. If one router fails, the host that uses that router as a default router cannot send packets off-subnet.

R1 and R2 attatch to the same Ethernet VLAN, with subnet 10.1.19.0/25, with addresses 10.1.19.1 and 10.1.19.2, respectively, configured with the ip address interface subcommand. The routers use an FHRP. Host A and host B attach to the same LAN and have correct default router settings per the FHRP configuration. Which of the following statement is true for this LAN?

A. The deign breaks Ipv4 addressing rules, because two routers cannot connect to the same LAN subnet.

B. If one router fails, neither host can send packets off-subnet.

C. If one router fails, both hosts will use the one remaining router as a default router.

D. If one router fails, only one of the two hosts will still be able to send packets off-subnet.

R1 and R2 attachto the same Ethernet VLAN, with subnet 10.1.19.0/25, with addresses 10.1.19.1 and 10.1.19.2, respectively, configured with the ip address interface subcommand. The routers use HSRP. The network engineer prefers to have R1 be the default router when both R1 and R2 are up. Which of the following is the likely default router setting for hosts in this subnet?

A.10.1.19.1

B. 10.1.19.2

C. Another IP address in subnet 10.1.19.0/25 other than 10.1.19.1 and 10.1.19.2

D. A hostname that the FHRP mini-DNS will intially point to 10.1.19.1

The following text lists output taken from Router R3, which is using HSRP. Subnet 10.1.12.0 uses mask 255.255.255.0. Based on the output of the command, which of the following answers is true?

A. Hosts with a default router setting of 10.1.12.1 are sending their packets to Router R3.

B. Hosts with a definite router setting of 10.1.12.2 are sending their packets to Router R3.

C. Router R3 has an ip address 10.1.12.2 255.255.255.255.0 command configured on its G0/0 interface.

D. Router R3 has an ip address 10.1.12.1 255.255.255.0 command configured on its G0/0 interface.

Two routers, R1 and R2, are configured to be part of an HSRP group. R1's configuration includes the standby priority 1 command, and R2's configuration includes the standby 1 priority 2 command. R1 powers up. An hour later, R2 powers up. Which of the following answers is true about which router is now the HSRP active router?

A. R2 is active regardless of other configuration settings.

B. R1 is active regardless of other configuration settings.

C. R2 is active only if R2 is also configured with standby 1 preempt.

D. R1 is active only if R1 is also configured with no standby 1 preempt.

Anpther engineer has configured HSRP on two routers that connect to the same LAN. You connect to the console of one of the routers, and see this log message: *Mar 12 17:18:19.123: %IP-4-DUPADDR: Duplicate address 10.2.2.2 on GigabitEthernet 0/0, source by 0000. 0c9f.f002 Which of the answers list an HSRP configuration mistake that would cause the router to list this message (Choose two answers.)

A. The two HSRP routers are configured with different HSRP group numbers.

B. The local router is filtering all incoming HSRP messages.

C. The two HSRP routers are configured with different HSRP version numbers.

D. The two HSRP routers have configured different virtual IP addresses.

Barney is a host with IP address 10.1.1.1 in subnet 10.1.1.0/24. Which of the following are things that a standard IP ACL could be configured to do? (Choose two answers)

A. Match the exact source IP address.

B. Match IP addresses 10.1.1.1 through 10.1.1.4 with one access-list command without other IP addresses.

C. Match all IP addresses in Barney's subnet with one access-list command without matching other IP addresses.

D. Match only the packet's destination IP address.

Which of the following answers list a valid number that can be used with standard numbered IP ACLs? (Choose two answers.)

A. 1987

B. 2187

C. 187

D. 87

Which of the following wildcard masks is most useful for matching all IP packets in subnet 10.1.128.0, mask 255.255.255.0?

ACL 1 has three statements, in the following order, with address and wildcard mask values as follows: 1.0.0.0 0.255.255.255, 1.1.0.0 0.0.255.255, and 1.1.1.0 0.0.0.255. If a router tried to match a packet sourced from IP address 1.1.1.1 using this ACL, which ACL statement does a router consider the packet to have matched?

A. First

B. Second

C. Third

D. Implied deny at the end of the ACL

Which of the following access-list commands matches all packets sent from hosts in subnet 172.16.4.0/23?

A. access-list 1 permit 172.16.0.5 0.0.255.0

B. access-list 1 permit 172.16.4.0 0.0.1.255

C. access-list 1 permit 172.16.5.0

D. access-list 1 permit 172.16.5.0 0.0.0.127

Which of the following fields cannot be compared based on an extended IP ACL? (Choose two answers.)

Which of the following access-list commands permit packets going from host 10.1.1.1 to all web servers whose IP addresses begin with 172.16.5? (Choose two answers.)

A. access-list 101 permit tcp host 10.1.1.1 172.16.5.0 0.0.0.255 eq www

B. access-list 1951 permit ip host 10.1.1.1 172.16.5.0 0.0.0.255 eq www

C. access-list 2523 permit ip host 10.1.1.1 eq www 172.16.5.0 0.0.0.255

D. access-list 2523 permit tcp host 10.1.1.1 eq www 172.16.5.0 0.0.0.255

E. access-list 2523 permit tcp host 10.1.1.1 172.16.5.0 0.0.0.255 eq www

Which of the following access-list commands permit packets going to any web client from all web servers whose IP addresses begin with 172.16.5?

A. access-list 101 permit tcp host 10.1.1.1 172.16.5.0 0.0.0.255 eq www

B. access-list 1951 permit ip host 10.1.1.1 172.16.5.0 0.0.0.255 eq www

C. access-list 2523 permit tcp any eq www 172.16.5.0 0.0.0.255

D. access-list 2523 permit tcp 172.16.5.0 0.0.0.255 eq www 172.16.5.0 0.0.0.255

E. access-list 2523 permit tcp 172.16.5.0 0.0.255 eq www any

In a router running a recent IOS version (at least version 15.0), an engineer needs to delete the second line in ACL 101, which currently has four commands configured, Which of the following options could be used? (Choose two answers)

A. Delete the entire ACL and reconfigure the three ACL statements that should remain in the ACL.

B. Delete one line from the ACL using no access-list... Global command.

C. Delete one line from the ACL by entering ACL configuration mode for the ACL and then deleting only the second line based on its sequence number.

D. Delete the last three lines from the ACL from global configuration mode, and then add the last two statements back into the ACL.

An engineer is considering configuring an ACL on Router R1. The engineer could use ACL A, which would be enabled with the ip access-group B in command on that same interface. R1's G0/1 interface uses IPv4 address 1.1.1.1. Which of address-group B in command on that same interface. R1's G0/1 interface uses IPv4 address 1.1.1.1. Which of the answers are true when comparing these options? (Choose two answers.)

A. ACL A creates more risk of filtering important overhead traffic than ACL B.

B. ACL B creates more risk of filtering important overhead traffic than ACL A.

C. A ping 1.1.1.1 command on R1 would bypass ACL A even if enabled.

D. A ping 1.1.1.1 command on R1 would bypass ACL B even if enabled.

An engineer configures an ACL but forgets to save the configuration. At that point, which of the following commands display the configuration of an IPv4 ACL, including line numbers? (Choose two answers)

A. Show running-config

B. Show startup-config

C. Show ip access-lists

D. Show access-lists

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