Final Exam Flashcards
1
Q
Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?
R1(config)# ipv6 unicast-routing
R1(config)# ipv6 dhcp pool ACAD_CLASS
R1(config-dhcp)# dns-server 2001:db8:acad:a1::10
R1(config-dhcp)# domain-name netacad.net
R1(config-dhcp)# exit
R1(config)# interface gigabitEthernet 0/0
R1(config-if)# ipv6 address 2001:db8:acad:1::1/64
R1(config-if)# ipv6 dhcp server ACAD_CLASS
R1(config-if)# ipv6 nd other-config-flag
R1(config-if)# end
R1#
R1# show ipv6 dhcp pool
DHCPv6 pool: ACAD_CLASS
DNS server: 2001:DB8:ACAD:A1::10
Domain name: netacad.net
Active clients: 0
The default gateway address is not provided in the pool. No clients have communicated with the DHCPv6 server yet. The IPv6 DHCP pool configuration has no IPv6 address range specified. The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
A
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
2
Q
Which type of static route is configured with a greater administrative distance to provide a backup route to a route learned from a dynamic routing protocol?
standard static route floating static route default static route summary static route
A
floating static route
3
Q
Refer to the exhibit. A network engineer is examining a configuration implemented by a new intern who attached an IP phone to a switch port and configured the switch. Identify the issue, if any, with the configuration.
SW3(config-vlan)#vlan 2222 SW3(config-vlan)# name voice SW3(config-vlan)# int fa0/20 SW3(config-if)# switchportmode access SW3(config-if)#mls qos Crust cos SW3(config-if)#switchport access vlan 2222 SW3(config-i0# end
The voice VLAN should be 150. The configuration is correct. There must be a data VLAN added. The spanning-tree BPDU guard feature is missing. The switch port is not configured as a trunk.
A
The configuration is correct.
4
Q
Refer to the exhibit. Assuming that the routing tables are up to date and no ARP messages are needed, after a packet leaves H1, how many times is the L2 header rewritten in the path to H2?
H1 --> switch --> router1 --.> router2 --> switch --> H2
1
2
3
4
5
6`
A
2
5
Q
Refer to the exhibit. Which route was configured as a static route to a specific network using the next-hop address?
S 10.17.2.0/24 [1/O] via 10.16.2.2
S 0.0.0.0/0 [1/0] via 10.16.2.2
C 10.16.2..0/24 is directly connected, Serial/0/0/0
S 10.17.2.0/24 is directly connected. Serial 0/0/0
C 172.16.2.0/24 is directly connected, Serial0/0/0 S 192.168.2.0/24 [1/0] via 172.16.2.2 S 192.168.2.0/24 is directly connected, Serial 0/0/0 S 0.0.0.0/0 [1/0] via 172.16.2.2
A
S 192.168.2.0/24 [1/0] via 172.16.2.2
6
Q
What network prefix and prefix-length combination is used to create a default static route that will match any IPv6 destination?
::/128 ::/0 ::1/64 FFFF::/128
A
::/0
7
Q
A router has used the OSPF protocol to learn a route to the 172.16.32.0/19 network. Which command will implement a backup floating static route to this network?
ip route 172.16.0.0 255.255.240.0 S0/0/0 200 ip route 172.16.32.0 255.255.224.0 S0/0/0 200 ip route 172.16.0.0 255.255.224.0 S0/0/0 100 ip route 172.16.32.0 255.255.0.0 S0/0/0 100
A
ip route 172.16.32.0 255.255.224.0 S0/0/0 200
8
Q
Refer to the exhibit. Currently router R1 uses an EIGRP route learned from Branch2 to reach the 10.10.0.0/16 network. Which floating static route would create a backup route to the 10.10.0.0/16 network in the event that the link between R1 and Branch2 goes down?
router 1 –> branch 1 –>
branch2
ip route 10.10.0.0 255.255.0.0 Serial 0/0/0 100 ip route 10.10.0.0 255.255.0.0 209.165.200.226 100 ip route 10.10.0.0 255.255.0.0 209.165.200.225 100 ip route 10.10.0.0 255.255.0.0 209.165.200.225 50
A
ip route 10.10.0.0 255.255.0.0 209.165.200.225 100
9
Q
Which statement describes a route that has been learned dynamically?
It is automatically updated and maintained by routing protocols. It is unaffected by changes in the topology of the network. It has an administrative distance of 1. It is identified by the prefix C in the routing table.
A
It is automatically updated and maintained by routing protocols.
10
Q
Compared with dynamic routes, what are two advantages of using static routes on a router? (Choose two.)
They improve network security. They use fewer router resources. They improve the efficiency of discovering neighboring networks. They take less time to converge when the network topology changes. They automatically switch the path to the destination network when the topology changes.
A
They improve network security.
They use fewer router resources.
11
Q
A network administrator adds the default-information originate command to the configuration of a router that uses RIP as the routing protocol. What will result from adding this command?
The router will be reset to the default factory information. The router will not forward routing information that is learned from other routers. The router will propagate a static default route in its RIP updates, if one is present. The router will only forward packets that originate on directly connected networks.
A
The router will propagate a static default route in its RIP updates, if one is present.
12
Q
Refer to the exhibit. What is the administrative distance value that indicates the route for R2 to reach the 10.10.0.0/16 network?
1 0 90 20512256
A
1
13
Q
A network administrator reviews the routing table on the router and sees a route to the destination network 172.16.64.0/18 with a next-hop IP address of 192.168.1.1. What are two descriptions of this route? (Choose two.)
default route
supernet route
ultimate route
parent route
level 2 child route
A
ultimate route
level 2 child route
14
Q
Which two factors are important when deciding which interior gateway routing protocol to use? (Choose two.)
scalability
ISP selection
speed of convergence
the autonomous system that is used
campus backbone architecture
A
scalability
speed of convergence
15
Q
Employees of a company connect their wireless laptop computers to the enterprise LAN via wireless access points that are cabled to the Ethernet ports of switches. At which layer of the three-layer hierarchical network design model do these switches operate?
distribution
data link
physical
access
core
A
access
16
Q
What is a characteristic of the distribution layer in the three layer hierarchical model?
acts as the backbone for the network, aggregating and distributing network traffic throughout the campus provides access to the rest of the network through switching, routing, and network access policies distributes access to end users represents the network edge
A
provides access to the rest of the network through switching, routing, and network access policies
17
Q
Which information does a switch use to populate the MAC address table?
the destination MAC address and the incoming port the destination MAC address and the outgoing port the source and destination MAC addresses and the incoming port the source and destination MAC addresses and the outgoing port the source MAC address and the incoming port the source MAC address and the outgoing port
A
the source MAC address and the incoming port
18
Q
Which statement is correct about Ethernet switch frame forwarding decisions?
Frame forwarding decisions are based on MAC address and port mappings in the CAM table. Cut-through frame forwarding ensures that invalid frames are always dropped. Only frames with a broadcast destination address are forwarded out all active switch ports. Unicast frames are always forwarded regardless of the destination MAC address.
A
Frame forwarding decisions are based on MAC address and port mappings in the CAM table.
19
Q
Which switching method drops frames that fail the FCS check?
borderless switching cut-through switching ingress port buffering store-and-forward switching
A
store-and-forward switching
20
Q
In what situation would a Layer 2 switch have an IP address configured?
when the Layer 2 switch needs to forward user traffic to another device when the Layer 2 switch is the default gateway of user traffic when the Layer 2 switch needs to be remotely managed when the Layer 2 switch is using a routed port
A
when the Layer 2 switch needs to be remotely managed
21
Q
A network administrator is configuring a new Cisco switch for remote management access. Which three items must be configured on the switch for the task? (Choose three.)
IP address
VTP domain
vty lines
default VLAN
default gateway
loopback address
A
IP address
vty lines
default gateway
22
Q
A network technician has been asked to secure all switches in the campus network. The security requirements are for each switch to automatically learn and add MAC addresses to both the address table and the running configuration. Which port security configuration will meet these requirements?
auto secure MAC addresses dynamic secure MAC addresses static secure MAC addresses sticky secure MAC addresses
A
sticky secure MAC addresses
23
Q
A network administrator is configuring port security on a Cisco switch. When a violation occurs, which violation mode that is configured on an interface will cause packets with an unknown source address to be dropped with no notification sent?
off restrict protect shutdown
A
protect
24
Q
Two employees in the Sales department work different shifts with their laptop computers and share the same Ethernet port in the office. Which set of commands would allow only these two laptops to use the Ethernet port and create violation log entry without shutting down the port if a violation occurs?
switchport mode access switchport port-security switchport mode access switchport port-security switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation restrict switchport mode access switchport port-security maximum 2 switchport port-security mac-address sticky switchport mode access switchport port-security maximum 2 switchport port-security mac-address sticky switchport port-security violation protect
A
switchport mode access
switchport port-security
switchport port-security maximum 2
switchport port-security mac-address sticky
switchport port-security violation restrict
25
Refer to the exhibit. What protocol should be configured on SW-A Port 0/1 if it is to send traffic from multiple VLANs to switch SW-B?
```
Spanning Tree
RIP v2
IEEE 802.1Q
ARP
Rapid Spanning Tree
```
IEEE 802.1Q
26
A Cisco Catalyst switch has been added to support the use of multiple VLANs as part of an enterprise network. The network technician finds it necessary to clear all VLAN information from the switch in order to incorporate a new network design. What should the technician do to accomplish this task?
Erase the startup configuration and reboot the switch.
Erase the running configuration and reboot the switch.
Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch.
Delete the IP address that is assigned to the management VLAN and reboot the switch.
Delete the startup configuration and the vlan.dat file in the flash memory of the switch and reboot the switch.
27
What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value?
All VLANs will be allowed across the trunk.
Only VLAN 1 will be allowed across the trunk.
Only the native VLAN will be allowed across the trunk.
The switches will negotiate via VTP which VLANs to allow across the trunk.
All VLANs will be allowed across the trunk.
28
Refer to the exhibit. A network administrator is configuring inter-VLAN routing on a network. For now, only one VLAN is being used, but more will be added soon. What is the missing parameter that is shown as the highlighted question mark in the graphic?
It identifies the subinterface.
It identifies the VLAN number.
It identifies the native VLAN number.
It identifies the type of encapsulation that is used.
It identifies the number of hosts that are allowed on the interface.
It identifies the VLAN number.
29
A network administrator is designing an ACL. The networks 192.168.1.0/25, 192.168.0.0/25, 192.168.0.128/25, 192.168.1.128/26, and 192.168.1.192/26 are affected by the ACL. Which wildcard mask, if any, is the most efficient to use when specifying all of these networks in a single ACL permit entry?
0.0.0.127
0.0.0.255
0.0.1.255
0.0.255.255
A single ACL command and wildcard mask should not be used to specify these particular networks or other traffic will be permitted or denied and present a security risk.
0.0.1.255
30
The computers used by the network administrators for a school are on the 10.7.0.0/27 network. Which two commands are needed at a minimum to apply an ACL that will ensure that only devices that are used by the network administrators will be allowed Telnet access to the routers? (Choose two.)
```
access-class 5 in
access-list 5 deny any
access-list standard VTY
permit 10.7.0.0 0.0.0.127
access-list 5 permit 10.7.0.0 0.0.0.31
ip access-group 5 out
ip access-group 5 in
```
```
access-class 5 in
access-list 5 permit 10.7.0.0 0.0.0.31
```
31
A network engineer has created a standard ACL to control SSH access to a router. Which command will apply the ACL to the VTY lines?
access-group 11 in
access-class 11 in
access-list 11 in
access-list 110 in
access-class 11 in
32
What is the reason why the DHCPREQUEST message is sent as a broadcast during the DHCPv4 process?
to notify other DHCP servers on the subnet that the IP address was leased
to notify other hosts not to request the same IP address
for hosts on other subnets to receive the information
for routers to fill their routing tables with this new information
to notify other DHCP servers on the subnet that the IP address was leased
33
Which set of commands will configure a router as a DHCP server that will assign IPv4 addresses to the 192.168.100.0/23 LAN while reserving the first 10 and the last addresses for static assignment?
ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.100.254
ip dhcp pool LAN-POOL-100
network 192.168.100.0 255.255.255.0
ip default-gateway 192.168.100.1
ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN-POOL-100
network 192.168.100.0 255.255.254.0
default-router 192.168.100.1
dhcp pool LAN-POOL-100
ip dhcp excluded-address 192.168.100.1 192.168.100.9
ip dhcp excluded-address 192.168.100.254
network 192.168.100.0 255.255.254.0
default-router 192.168.101.1
ip dhcp excluded-address 192.168.100.1 192.168.100.9
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN-POOL-100
ip network 192.168.100.0 255.255.254.0
ip default-gateway 192.168.100.1
ip dhcp excluded-address 192.168.100.1 192.168.100.10
ip dhcp excluded-address 192.168.101.254
ip dhcp pool LAN-POOL-100
network 192.168.100.0 255.255.254.0
default-router 192.168.100.1
34
Which command, when issued in the interface configuration mode of a router, enables the interface to acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?
ip dhcp pool
ip address dhcp
service dhcp
ip helper-address
ip address dhcp
35
Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement explains the reason that the number of active clients is 0?
The default gateway address is not provided in the pool.
No clients have communicated with the DHCPv6 server yet.
The IPv6 DHCP pool configuration has no IPv6 address range specified.
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
36
Refer to the exhibit. Which statement shown in the output allows router R1 to respond to stateless DHCPv6 requests?
```
ipv6 unicast-routing
dns-server 2001:DB8:8::8
ipv6 dhcp server LAN1
ipv6 nd other-config-flag
prefix-delegation 2001:DB8:8::/48 00030001000E84244E70
```
ipv6 nd other-config-flag
37
Refer to the exhibit. NAT is configured on Remote and Main. The PC is sending a request to the web server. What IPv4 address is the source IP address in the packet between Main and the web server?
10. 130.5.76
209. 165.200.245
203. 0.113.5
172. 16.1.10
192. 0.2.1
209. 165.200.226
203.0.113.5
38
Refer to the exhibit. Which two statements are correct based on the output as shown in the exhibit? (Choose two.)
The output is the result of the show ip nat translations command.
The host with the address 209.165.200.235 will respond to requests by using a source address of 192.168.10.10.
The host with the address 209.165.200.235 will respond to requests by using a source address of 209.165.200.235.
Traffic with the destination address of a public web server will be sourced from the IP of 192.168.1.10.
The output is the result of the show ip nat statistics command.
The output is the result of the show ip nat translations command.
The host with the address 209.165.200.235 will respond to requests by using a source address of 192.168.10.10.
39
Refer to the exhibit. A network administrator has configured R2 for PAT. Why is the configuration incorrect?
The static NAT entry is missing.
NAT-POOL2 is bound to the wrong ACL.
The ACL does not define the list of addresses to be translated.
The overload keyword should not have been applied.
NAT-POOL2 is bound to the wrong ACL.
40
A college marketing department has a networked storage device that uses the IP address 10.18.7.5, TCP port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the router that connects to the Internet. The router interface has the public IP address of 209.165.200.225/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228-236. Which configuration would the network administrator add to allow this device to be accessed by the marketing personnel from home?
ip nat pool mktv 10.18.7.5 10.18.7.5
ip nat outside source static 10.18.7.5 209.165.200.225
ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
ip nat inside source static tcp 209.165.200.225 443 10.18.7.5 443
ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365
No additional configuration is necessary
ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
41
Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?
dynamic NAT with a pool of two public IP addresses
PAT using an external interface
static NAT with one entry
static NAT with a NAT pool
PAT using an external interface
42
Refer to the exhibit. An administrator is trying to configure PAT on R1, but PC-A is unable to access the Internet. The administrator tries to ping a server on the Internet from PC-A and collects the debugs that are shown in the exhibit. Based on this output, what is most likely the cause of the problem?
The address on Fa0/0 should be 64.100.0.1.
The NAT source access list matches the wrong address range.
The inside global address is not on the same subnet as the ISP.
The inside and outside NAT interfaces have been configured backwards.
The inside global address is not on the same subnet as the ISP.
43
A network engineer is interested in obtaining specific information relevant to the operation of both distribution and access layer Cisco devices. Which command provides common information relevant to both types of devices?
```
show ip protocols
show ip interface
show cdp neighbors
show port-security
show mac-address-table
```
show cdp neighbors
44
Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number? (Choose two.)
The NTP master will claim to be synchronized at the configured stratum number.
The NTP master will be the clock with 1 as its stratum number.
An NTP server with a higher stratum number will become the master.
Other systems will be willing to synchronize to that master using NTP.
The NTP master will lower its stratum number.
The NTP master will claim to be synchronized at the configured stratum number.
Other systems will be willing to synchronize to that master using NTP.
45
What are three functions provided by the syslog service? (Choose three.)
to gather logging information for monitoring and troubleshooting
to select the type of logging information that is captured
to specify the destinations of captured messages
to periodically poll agents for data
to provide statistics on packets that are flowing through a Cisco device
to provide traffic analysis
to gather logging information for monitoring and troubleshooting
to select the type of logging information that is captured
to specify the destinations of captured messages
46
Refer to the exhibit. An administrator is examining the message in a syslog server. What can be determined from the message?
This is a notification message for a normal but significant condition.
This is an alert message for which immediate action is needed.
This is an error message for which warning conditions exist.
This is an error message that indicates the system is unusable.
This is a notification message for a normal but significant condition.
47
When a customer purchases a Cisco IOS 15.0 software package, what serves as the receipt for that customer and is used to obtain the license as well?
Software Claim Certificate
End User License Agreement
Unique Device Identifier
Product Activation Key
Product Activation Key
48
Refer to the exhibit. The network administrator enters these commands into the R1 router:
R1# copy running-config tftp
Address or name of remote host [ ]?
When the router prompts for an address or remote host name, what IP address should the administrator enter at the prompt?
192. 168.9.254
192. 168.10.1
192. 168.10.2
192. 168.11.252
192. 168.11.254
192.168.11.252
49
```
Match:
Flash
NVRAM
RAM
ROM
```
```
Console access
full operating system
limited operating system
routing table
startup configuration file
```
flash --> full operating system
rom --> limited operating system
ram --> routing table
nvram --> startup configuration file
50
```
MATCH:
Resiliency
Hierarchial
modularity
flexibility
```
Layers minimize the number of devices on any one tier that share a single point of failure.
Each layer has specific roles and functions that can scale easily.
This provides "always on" dependability.
This provides quality of service and additional security
This shares the network traffic load across all network resources
Hierarchial --> Layers minimize the number of devices on any one tier that share a single point of failure.
modularity --> Each layer has specific roles and functions that can scale easily.
Resiliency --> This provides "always on" dependability.
flexibility --> This shares the network traffic load across all network resources
51
```
MATCH:
default VLAN
management VLAN
data VLANs
native VLAN
```
configured to carry user generated traffic
all switch ports are assigned to this VLAN after initial bootup of the switch
carries untagged traffic
an IP address and subnet mask are assigned to this VLAN. allowing the switch to be accessed by HTTP, SSH, or SNMP
only accessible by the network administrator
data VLANs --> configured to carry user generated traffic
default VLAN --> all switch ports are assigned to this VLAN after initial bootup of the switch
native VLAN --> carries untagged traffic
management VLAN --> an IP address and subnet mask are assigned to this VLAN. allowing the switch to be accessed by HTTP, SSH, or SNMP
52
On which two routers would a default static route be configured? (Choose two.)
stub router connection to the rest of the corporate or campus network
any router where a backup route to dynamic routing is needed for reliability
edge router connection to the ISP
any router running an IOS prior to 12.0
the router that serves as the gateway of last resort
stub router connection to the rest of the corporate or campus network
edge router connection to the ISP
53
Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224 255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach resources on the Internet. How should this static route be changed to allow user traffic from the LAN to reach the Internet?
Add the next-hop neighbor address of 209.165.200.226.
Change the exit interface to S0/0/1.
Change the destination network and mask to 0.0.0.0 0.0.0.0.
Add an administrative distance of 254.
Change the destination network and mask to 0.0.0.0 0.0.0.0.
54
Refer to the exhibit. Router R1 has an OSPF neighbor relationship with the ISP router over the 192.168.0.32 network. The 192.168.0.36 network link should serve as a backup when the OSPF link goes down. The floating static route command ip route 0.0.0.0 0.0.0.0 S0/0/1 100 was issued on R1 and now traffic is using the backup link even when the OSPF link is up and functioning. Which change should be made to the static route command so that traffic will only use the OSPF link when it is up?
Add the next hop neighbor address of 192.168.0.36.
Change the administrative distance to 1.
Change the destination network to 192.168.0.34.
Change the administrative distance to 120.
Change the administrative distance to 120.
55
Refer to the exhibit. All hosts and router interfaces are configured correctly. Pings to the server from both H1 and H2 and pings between H1 and H2 are not successful. What is causing this problem?
```
RIPv2 does not support VLSM.
RIPv2 is misconfigured on router R1.
RIPv2 is misconfigured on router R2.
RIPv2 is misconfigured on router R3.
RIPv2 does not support discontiguous networks.
```
RIPv2 is misconfigured on router R2.
56
What is a basic function of the Cisco Borderless Architecture access layer?
aggregates Layer 2 broadcast domains
aggregates Layer 3 routing boundaries
provides access to the user
provides fault isolation
provides access to the user
57
What will a Cisco LAN switch do if it receives an incoming frame and the destination MAC address is not listed in the MAC address table?
Drop the frame.
Send the frame to the default gateway address.
Use ARP to resolve the port that is related to the frame.
Forward the frame out all ports except the port where the frame is received.
Forward the frame out all ports except the port where the frame is received.
58
Which advantage does the store-and-forward switching method have compared with the cut-through switching method?
collision detecting
frame error checking
faster frame forwarding
frame forwarding using IPv4 Layer 3 and 4 information
frame error checking
59
What caused the following error message to appear?01:11:12: %PM-4-ERR_DISABLE: psecure-violation error detected on Fa0/8, putting Fa0/8 in err-disable state
01:11:12: %PORT_SECURITY-2-PSECURE_VIOLATION: Security violation occurred, caused by MAC address 0011.a0d4.12a0 on port FastEthernet0/8.
01:11:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/8, changed state to down01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down
Another switch was connected to this switch port with the wrong cable.
An unauthorized user tried to telnet to the switch through switch port Fa0/8.
NAT was enabled on a router, and a private IP address arrived on switch port Fa0/8.
A host with an invalid IP address was connected to a switch port that was previously unused.
Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.
Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.
60
Refer to the exhibit. A small business uses VLANs 2, 3, 4, and 5 between two switches that have a trunk link between them. What native VLAN should be used on the trunk if Cisco best practices are being implemented?
```
1
2
3
4
5
6
```
6
61
Which statement describes a characteristic of the extended range VLANs that are created on a Cisco 2960 switch?
They are numbered VLANs 1002 to 1005.
They cannot be used across multiple switches.
They are reserved to support Token Ring VLANs.
They are not stored in the vlan.dat file.
They are not stored in the vlan.dat file.
62
A network administrator is using the router-on-a-stick method to configure inter-VLAN routing. Switch port Gi1/1 is used to connect to the router. Which command should be entered to prepare this port for the task?
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree vlan 1
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# spanning-tree portfast
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport mode trunk
Switch(config)# interface gigabitethernet 1/1
Switch(config-if)# switchport access vlan 1
Switch(config)# interface gigabitethernet 1/1
| Switch(config-if)# switchport mode trunk
63
A network administrator is configuring an ACL with the command access-list 10 permit 172.16.32.0 0.0.15.255. Which IPv4 address matches the ACE?
172. 16.20.2
172. 16.26.254
172. 16.47.254
172. 16.48.5
172.16.47.254
64
What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server?
Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router.
Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5.
The DHCP server function of the router will not issue the addresses from 172.16.4.1 through 172.16.4.5 inclusive.
The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.
The DHCP server function of the router will not issue the addresses from 172.16.4.1 through 172.16.4.5 inclusive.
65
A host on the 10.10.100.0/24 LAN is not being assigned an IPv4 address by an enterprise DHCP server with the address 10.10.200.10/24. What is the best way for the network engineer to resolve this problem?
Issue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway.
Issue the command default-router 10.10.200.10 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.
Issue the command ip helper-address 10.10.100.0 on the router interface that is the 10.10.200.0/24 gateway.
Issue the command network 10.10.200.0 255.255.255.0 at the DHCP configuration prompt on the 10.10.100.0/24 LAN gateway router.
Issue the command ip helper-address 10.10.200.10 on the router interface that is the 10.10.100.0/24 gateway.
66
What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?
the MAC address of the IPv6 enabled interface
a randomly generated 64-bit hexadecimal address
an IPv6 address that is provided by a DHCPv6 server
an IPv4 address that is configured on the interface
the MAC address of the IPv6 enabled interface
67
What benefit does NAT64 provide?
It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from hosts on public IPv4 networks.
It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4 addresses.
68
A network administrator is verifying a configuration that involves network monitoring. What is the purpose of the global configuration command logging trap 4?
System messages will be forwarded to the number following the logging trap argument.
System messages that exist in levels 4-7 must be forwarded to a specific logging server.
System messages that match logging levels 0-4 will be forwarded to a specified logging device.
System messages will be forwarded using a SNMP version that matches the argument that follows the logging trap command.
System messages that match logging levels 0-4 will be forwarded to a specified logging device.
69
What is the purpose of the Cisco PAK?
It is a key for enabling an IOS feature set.
It is a proprietary encryption algorithm.
It is a compression file type used when installing IOS 15 or an IOS upgrade.
It is a way to compress an existing IOS so that a newer IOS version can be co-installed on a router.
It is a key for enabling an IOS feature set.
70
Refer to the exhibit. Which three hosts will receive ARP requests from host A, assuming that port Fa0/4 on both switches is configured to carry traffic for multiple VLANs? (Choose three.)
```
host B
host C
host D
host E
host F
host G
```
host C
host D
host F
71
What is the effect of configuring the ipv6 unicast-routing command on a router?
to assign the router to the all-nodes multicast group
to enable the router as an IPv6 router
to permit only unicast packets on the router
to prevent the router from joining the all-routers multicast group
to enable the router as an IPv6 router
72
What is a characteristic of a static route that creates a gateway of last resort?
It backs up a route already discovered by a dynamic routing protocol.
It uses a single network address to send multiple static routes to one destination address.
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route.
It is configured with a higher administrative distance than the original dynamic routing protocol has.
It identifies the gateway IP address to which the router sends all IP packets for which it does not have a learned or static route.
73
Which route will a router use to forward an IPv4 packet after examining its routing table for the best match with the destination address?
a level 1 child route
a level 1 parent route
a level 1 ultimate route
a level 2 supernet route
a level 1 ultimate route
74
Which network design may be recommended for a small campus site that consists of a single building with a few users?
a network design where the access and core layers are collapsed into a single layer
a collapsed core network design
a three-tier campus network design where the access, distribution, and core are all separate layers, each one with very specific functions
a network design where the access and distribution layers are collapsed into a single layer
a collapsed core network design
75
What is a result of connecting two or more switches together?
The number of broadcast domains is increased.
The size of the broadcast domain is increased.
The number of collision domains is reduced.
The size of the collision domain is increased.
The size of the broadcast domain is increased.
76
Which commands are used to re-enable a port that has been disabled as a result of a port security violation?
shutdown
no shutdown
shutdown
no switchport port-security
shutdown
no switchport port-security violation shutdown
shutdown
no switchport port-security maximum
shutdown
| no shutdown
77
Which two characteristics describe the native VLAN? (Choose two.)
Designed to carry traffic that is generated by users, this type of VLAN is also known as the default VLAN.
The native VLAN traffic will be untagged across the trunk link.
This VLAN is necessary for remote management of a switch.
High priority traffic, such as voice traffic, uses the native VLAN.
The native VLAN provides a common identifier to both ends of a trunk.
The native VLAN traffic will be untagged across the trunk link.
The native VLAN provides a common identifier to both ends of a trunk.
78
Which type of traffic is designed for a native VLAN?
user-generated
tagged
untagged
management
untagged
79
An administrator is trying to remove configurations from a switch. After using the command erase startup-config and reloading the switch, the administrator finds that VLANs 10 and 100 still exist on the switch. Why were these VLANs not removed?
These VLANs are default VLANs that cannot be removed.
These VLANs cannot be deleted unless the switch is in VTP client mode.
These VLANs can only be removed from the switch by using the no vlan 10 and no vlan 100 commands.
Because these VLANs are stored in a file that is called vlan.dat that is located in flash memory, this file must be manually deleted.
Because these VLANs are stored in a file that is called vlan.dat that is located in flash memory, this file must be manually deleted.
80
What is used in the EUI-64 process to create an IPv6 interface ID on an IPv6 enabled interface?
the MAC address of the IPv6 enabled interface
a randomly generated 64-bit hexadecimal address
an IPv6 address that is provided by a DHCPv6 server
an IPv4 address that is configured on the interface
the MAC address of the IPv6 enabled interface
81
Which type of traffic would most likely have problems when passing through a NAT device?
```
Telnet
IPsec
HTTP
ICMP
DNS
```
IPsec
82
Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat inside source list 1 interface serial 0/0/0 overload
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
ip nat inside source static 10.0.0.5 209.165.200.225
access-list 1 permit 10.0.0.0 0.255.255.255
| ip nat inside source list 1 interface serial 0/0/0 overload
83
Which two statements are correct if a configured NTP master on a network cannot reach any clock with a lower stratum number? (Choose two.)
The NTP master will claim to be synchronized at the configured stratum number.
The NTP master will be the clock with 1 as its stratum number.
An NTP server with a higher stratum number will become the master.
Other systems will be willing to synchronize to that master using NTP.
The NTP master will lower its stratum number.
The NTP master will claim to be synchronized at the configured stratum number.
Other systems will be willing to synchronize to that master using NTP.
84
What is indicated by the M in the Cisco IOS image name c1900-universalk9-mz.SPA.153-3.M.bin?
a maintenance deployment release
a minor release
a mainline release
an extended maintenance release
an extended maintenance release
