1. (TCO 1) A switch receives a frame from PC-A to PC-B. Both PCs are on the same
ID: 674593 • Letter: 1
Question
1. (TCO 1) A switch receives a frame from PC-A to PC-B. Both PCs are on the same VLAN. The MAC Address of PC-A is not yet registered in the switch MAC Address Table. Where will the switch forward the frame? (Points : 3) To all active ports in the VLAN except for the ingress portDirectly to PC-B if the switch knows the source MAC Address
Floods the frame to all ports assuming PC-B’s Physical Address is in the Switch MAC Address Table
Either answer A or C would be correct.
None of the above Question 2.2. (TCO 1) Which action does not occur before the boot loader initializes the CPU? (Points : 3) Boot loader executes POST
Switch loads boot loader software
Both A and B are correct.
Firmware in POST checks the BIOS before loading it in memory
All of the above Question 3.3. (TCO 1) Which step is not appropriate to recover from a damaged operating system? (Points : 3) Load the recovery IOS backup files.
Press mode button until System LED turns briefly amber.
Unplug the switch power cord.
Boot loader prompt switch: will appear.
Both B and C are correct. Question 4.4. (TCO 1) A network engineer observes that the system LED on a switch is amber. What does this indicate? (Points : 3) The system is booting up.
The system is not receiving power from the backplane bus.
Power is not functioning properly.
The RPS is off and not properly working.
Both A and C are correct. Question 5.5. (TCO 2) This VLAN is used to carry SSH, Telnet, SYSLOG, and SNMP traffic only between two host devices and the infrastructure devices. (Points : 3) A default VLAN
A management VLAN
A native VLAN
A data VLAN
An administrative VLAN Question 6.6. (TCO 2) This VLAN carries more than one VLAN. (Points : 3) Administrative VLAN
Data VLAN
Management VLAN
Blackhole VLAN
None of the above Question 7.7. (TCO 2) Switch A and Switch B are connected together via their Fast Ethernet F0/10. Switch A’s port is statically configured as Access and Switch’s B port is statically configured as Trunk. What will the status of the connection be between the two switches? (Points : 3) Trunk
Access
Disabled
It depends on which switch communicates first.
Limited connectivity Question 8.8. (TCO 3) This network passes data most of the time, but sometimes for reasons unknown to the junior network engineer in charge of monitoring the network, the core router often crashes. What is the characteristic that is violated? (Points : 3) Failure
Availability
Performance
Manageability
Scalability Question 9.9. (TCO 3) Routers use dynamic routing protocols to _____. (Points : 3) encapsulate frames as they pass through the ingress interface
determine the cost to forward a packet to its destination
exchange layer 2 networks with each other
encapsulate frames as they pass through the egress interface
discover remote networks Question 10.10. (TCO 3) This switching mechanism uses a cache to store next hop information. (Points : 3) Main express forwarding (MEF)
Cisco ultra-fast forwarding (CUF)
Process switching
Fast switching
Cisco express forwarding (CEF) Question 11.11. (TCO 3) Which command would you use to troubleshoot a routing problem between a router and a switch? (Points : 3) show interface ip brief
debug ip route
show interfaces detail
show interfaces trunk
show ip default Question 12.12. (TCO 3) What happens next after a router matches a destination address to a network address in its routing table? (Points : 3) Forwards the packet to the next hop ingress address on the local router.
Checks the ARP cache and forwards packet to local host.
Encapsulate the packet into a destination IP address before forwarding.
Check the routing table for lowest cost path.
None of the above Question 13.13. (TCO 4) A router can learn about a remote network in one of two ways either manually or _____. (Points : 3) remotely
dynamically
secretly
statically
None of the above Question 14.14. (TCO 4) Which statement is true regarding classless routing protocols? (Points : 3) Sends inverse mask information in routing updates
Sends complete routing table update to all neighbors
Is supported by RIP version 1
Allows for use of both 172.16.1.0/30 and 172.16.1.32/28 subnets in the same topology
Reduces the amount of address space available in an organization Question 15.15. (TCO 4) The administrative distance value of static routes is _____. (Points : 3) 0
2
120
90
None of the Above Question 16.16. (TCO 4) What task does dynamic routing protocols perform? (Points : 3) Discover hosts
Update and maintain routing tables
Share default gateway information
Network availability
Assign IP addressing Question 17.17. (TCO 4) The command one uses to create a IPv6 static route on a Cisco router is _____. (Points : 3) ipv6 route ipv6-prefix/prefix-length exit interface
ip static ipv6-prefix/prefix-length exit interface
ipv6 unicast-routing
ipv6 default route ipv6-prefix/prefix-length exit interface
None of the above Question 18.18. (TCO 5) Router_A is currently the OSPF designated router (DR). When will an election occur for a new DR? (Points : 3) When a new router comes up with a higher OSPF priority
When the point-to-point interface of the current DR goes down
When the DR fails
Answers A, B, and C are correct.
None of the above Question 19.19. (TCO 5) The 224.0.0.5 OSPF address is used by _____. (Points : 3) all routers to exchange link state advertisement in multiaccess networks
the designated router to forward LSAs to all routers
DROthers and backup designated routers to forward LSAs
a reserved group of high priority OSPF routers
None of the above Question 20.20. (TCO 5) An OSPF router is configured with a basic hello timer of 30 seconds. What will the default dead interval timer be? (Points : 3) 30 seconds
90 seconds
60 seconds
10 seconds
120 seconds Question 21.21. (TCO 5) The OSPF packet header contains _____. (Points : 3) the area priority field
the DROther field
the Type code for OSPF packet type
the router autonomous system field
Answers A and B are correct.
Question 22.22. (TCO 5) Which command will verify that a router that is running OSPFv3 has formed an adjacency with other routers in its OSPF area? (Points : 3) show running-configuration
show ip ospf neighbor
show ipv6 ospf neighbor
show ipv6 route ospf
show ipv6 interface brief Question 23.23. (TCO 5) Single area OSPFv3 has been enabled on a router via the ipv6 router ospf 5 command. Which command will enable this OSPFv3 process on an interface of that router? (Points : 3) ipv6 ospf 0 area 0
ipv6 ospf 0 area 5
ipv6 ospf 5 area 0
ipv6 ospf 5 area 5
None of the above Question 24.24. (TCO 5) Cisco’s routers use this first to determine router-ID in OSPF. Assume IP addresses are configured on physical and Loopback interfaces and are working as expected. (Points : 3) Largest physical interface IP of Loopback
Global interface-ID
Lowest physical interface IP of Loopback
Local interface-ID
None of the Above Question 25.25. (TCO 6) What function describes the use of an access control list? (Points : 3) ACLs control which user can access what services on the Internet.
It is always preferred to use Extended ACLs since they are more flexible.
ACLs should always be placed close to the source to avoid waste of computing resources.
ACLs can be used to filter private IP addresses.
ACLs help protect an organization's physical infrastructure. Question 26.26. (TCO 6) IPv6 ACL can only be _____. (Points : 3) named
standard
numbered
contiguous
None of the above Question 27.27. (TCO 6) What is a possible use of an access control list in an enterprise network? (Points : 3) Limiting the amount of debug outputs
Reducing the processing load on routers
Control layer 2 traffic to protect against internal attacks
Allowing layer 2 traffic to be filtered by a router
All of the above Question 28.28. (TCO 6) Which statement describes a characteristic of standard IPv4 ACLs? (Points : 3) They are configured in the interface configuration mode.
They can only filter traffic in the egress interface.
They filter traffic based on source IP addresses only.
They can only be applied with the ip access-class command.
They are limited to filter only destination addresses. Question 29.29. (TCO 6) Which statement describes a characteristic of extended IPv4 ACLs? (Points : 3) They are best at filtering based on source addresses only.
They can filter source and protocol.
They can be applied in the global configuration mode before they can take effect.
They are less flexible than standard ACLs.
They can impact routing protocols due to their implicit deny all option. Question 30.30. (TCO 6) If a router has three interfaces and is routing both IPv4 and IPv6 traffic, what is the maximum number of ACLs that could be created and applied to it? (Points : 3) 9
3
6
15
12 Question 31.31. (TCO 6) A network engineer has configured an access-list on NY-R1 to allow only Telnet traffic to the router from host 10.1.100.10. Which command correctly applies to the above scenario? (Points : 3) NY-R1(config-if)# ip access-group out
NY-R1(config-line)# access-class 17 in
NY-R1(config)# ip access-class 101 in
NY-R1(config-line)# access-class 99 out
NY-R1(config-if)# ip access-class 50 in Question 32.32. (TCO 7) Which DHCPv4 message will a client send to let other DHCP servers know which IPv4 address that it has selected? (Points : 3) Unicast DHCPOFFER
Broadcast DHCPOFFER
Broadcast DHCPREQUEST
Unicast DHCPACK
None of the above Question 33.33. (TCO 7) This layer 2 address is used when a DHCP client makes a request to a DHCP server for an IPv4 address. (Points : 3) 0.0.0.0 as a source address
255.255.255.255 as a destination address
169.254.255.255
FF-FF-FF-FF-FF-FF
Answers A and B are correct. Question 34.34. (TCO 7) What is the purpose of the DHCPREQUEST message during the DHCPv4 process? (Points : 3) To ensure that the host is on the correct subnet
To synchronize with the other hosts on the subnet
To let other DHCP servers on the subnet know that the IP address was leased
To avoid a possible IP conflict
To minimize IP starvation Question 35.35. (TCO 7) An administrator issues the commands:
Ro1(config)# interface F0/1
Ro1(config-if)# ip helper-address 192.120.1.1
What is the administrator trying to achieve? (Points : 3) Configuring the router to obtain IP parameters from a DHCPv4 server
Configure the router to resolve IP conflicts
Configure the router to act as relay agent
Answers A and B are correct
Configure the router to minimize DHCP starvation Question 36.36. (TCO 7) ABC Corporation has two locations, one in NY and another location in CA. ABC IT managers want all DHCP clients in CA to receive IP addresses only from the router in NY. The five engineers at the meeting had this to say (written in the order in which they gave their feedback). Which engineer is correct? (Points : 3) It is not possible to obtain an IPv4 address over the WAN.
The NY router only supports one IPv4 and one IPv6 DHCP scope.
Perhaps ABC can use a DHCP relay agent in NY to assign IP addresses.
Use a DHCP relay agent in CA.
None of the above Question 37.37. (TCO 7) A PC is configured to use the SLAAC method to obtain an IPv6 address. What message does the PC receive from the router after sending an RS message? (Points : 3) An ACK message
A CONFIRM message
An RS message
A SYN message
d. A TCP message Question 38.38. (TCO 7) The command to use a router into a DHCP IPv6 relay agent on an interface is _____. (Points : 3) ipv6 dhcp relay
ipv6 dhcp relay destination IPv6 address
ipv6 dhcp relay-agent
Answers A and C are correct.
None of the above Question 39.39. (TCO 4) RIPv1 has the following characteristic: _____. (Points : 3) Bandwidth is used as the metric for path selection
Updates are event-driven
Uses a topology table database
Answers A and C are correct.
None of the above Question 40.40. (TCO 5) Assigning networks to an area with OSPF is done by using the _____ command. (Points : 3) network
router
SPF
area
None of the above 1. (TCO 1) A switch receives a frame from PC-A to PC-B. Both PCs are on the same VLAN. The MAC Address of PC-A is not yet registered in the switch MAC Address Table. Where will the switch forward the frame? (Points : 3) To all active ports in the VLAN except for the ingress port
Directly to PC-B if the switch knows the source MAC Address
Floods the frame to all ports assuming PC-B’s Physical Address is in the Switch MAC Address Table
Either answer A or C would be correct.
None of the above
Explanation / Answer
1.
A switch receives a frame from PC-A to PC-B. Both PCs are on the same VLAN. The MAC Address of PC-A is not yet registered in the switch MAC Address Table. Where will the switch forward the frame?
The correct option is C) that is, it floods the frame to all ports assuming PC-B’s Physical Address is in the Switch MAC Address Table.
2
The actions that do not occur before the boot loader initializes the CPU are that Boot loader executes POST and Switch loads boot loader software.
So, Both A and B are correct.
3.
The step which is not appropriate to recover from a damaged operating system is to load the recovery IOS backup files.
The correct option is A)
4.
A network engineer observes that the system LED on a switch is amber, this indicates that the system is booting up and power is not functioning properly.
The options A and C are correct.
5.
The VLAN that is used to carry SSH, Telnet, SYSLOG and SNMP traffic only between two host devices and the infrastructure devices is a native VLAN
The correct option is C)
6.
The VLAN that carries more than one VLAN is Administrative VLAN.
The correct option is A)
7.
The status of the connection will depend on which switch communicates first.
The correct option is D)
8.
The characteristic that is violated is Manageability because it will include monitoring, configuration and control, updation etc… Therefore, this characteristic will be violated.
The correct option is D)
9.
The Routers use dynamic routing protocols to encapsulate frames as they pass through the ingress interface.
The correct option is A)
10.
The switching mechanism that uses a cache to store next hop information is Cisco Express Forwarding (CEF). It uses FIB table to find the correct entry from the adjacency table fast
The correct option is E)
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