Routers create a topology of the network by using information from other routers.
The database information for each router is obtained from the same source.
Routers send triggered updates in response to a change.
Routers create a topology of the network by using information from other routers.
Paths are chosen based on the lowest number of hops to the designated router.
Routers send periodic updates only to neighboring routers.
In IPv6, all routes are level ___ ultimate routes.
ingress port buffering
cut-through switching
store-and-forward switching
borderless switching
ipv6 route 2001:db8:cafe::/54 S0/0/0
ipv6 route 2001:db8:cafe::/60 S0/0/0
ipv6 route 2001:db8:cafe::/62 S0/0/0
ipv6 route 2001:db8:cafe::/56 S0/0/0
data VLAN ID
native VLAN ID
unused VLAN ID
management VLAN ID
ip nat inside source static udp 10.18.7.5 4365 209.165.200.225 4365
ip nat pool mktv 10.18.7.5 10.18.7.5
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 outside source static 10.18.7.5 209.165.200.225
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.
in an IPv6 extended ACL that stops packets going to one specific destination VLAN
in an IPv4 extended ACL that allows packets from a range of TCP ports destined for a specific network device
in an IPv4 named standard ACL that has specific UDP protocols that are allowed to be used on a specific server
in an IPv6 named ACL that permits FTP traffic from one particular LAN getting to another LAN
https://lh5.googleusercontent.com/-9WB4O6eybPg/UvwMJFvxVaI/AAAAAAAAAkc/nYL6vo0xvXA/w501-h93-no/10-final-ccna2.png
The ip address interface configuration mode command was used in addition to the network routing protocol configuration mode command.
The ipv6 route command was used.
the ip route command was used.
Another router in the same organization provided the default route by using a dynamic routing protocol.
(config-if)# no switchport
https://lh6.googleusercontent.com/-jpBtoQe3Qjk/UvwMJG65rmI/AAAAAAAAAkM/8n7THtwAOxU/w373-h293-no/11-final-ccna2.png
(config)# interface gigabitethernet 1/1
(config-if)# no switchport
(config-if)# ip address 192.168.1.2 255.255.255.252
(config)# interface vlan 1
(config-if)# ip address 192.168.1.2 255.255.255.0
(config-if)# no shutdown
(config)# interface gigabitethernet1/1
(config-if)# switchport mode trunk
(config)# interface fastethernet0/4
(config-if)# switchport mode trunk
(config)# ip routing
1
3
4
2
Only devices in VLAN 20 see the frame.
Devices in VLAN 20 and the management VLAN see the frame.
Only devices that are connected to the local switch see the frame.
All devices in all VLANs see the frame.
2- Each router is responsible for “saying hello” to its neighbors on directly connected networks.
3- Each router builds a Link-State Packet (LSP) containing the state of each directly connected link
4- Each router floods the LSP to all neighbors, who then store all LSPs received in a database
5- Each router uses the database to construct a complete map of the topology and computes the best
destination UDP port number
computer type
source TCP hello address
ICMP message type
destination UDP port number
destination MAC address
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 an administrative distance of 254.
Change the destination network and mask to 0.0.0.0 0.0.0.0
Change the exit interface to S0/0/1.
Add the next-hop neighbor address of 209.165.200.226.
the highest IPv6 address on an active interface
the highest EUI-64 ID on an active interface
the highest IPv4 address on an active interface
the lowest MAC address on an active interface
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
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
scalability
speed of convergence
scalability
ISP selection
the autonomous system that is used
campus backbone architecture
ultimate route
child route
default route
level 1 parent route
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 down
01:11:14: %LINK-3-UPDOWN: Interface FastEthernet0/8, changed state to down
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.
Port security was enabled on the switch port, and an unauthorized connection was made on switch port Fa0/8.
Another switch was connected to this switch port with the wrong cable.
A host with an invalid IP address was connected to a switch port that was previously unused.
They are not associated with a particular VLAN.
In a switched network, they are mostly configured between switches at the core and distribution layers.
They support subinterfaces, like interfaces on the Cisco IOS routers.
The interface vlan command has to be entered to create a VLAN on routed ports.
They are used for point-to-multipoint links.
They are not associated with a particular VLAN.
permit ip any host ip_address
permit icmp any any nd-na
permit ip any any
deny ip any any
A lower cost indicates a better path to the destination than a higher cost does.
Cost equals bandwidth.
A higher cost for an OSPF link indicates a faster path to the destination.
Link cost indicates a proportion of the accumulated value of the route to the destination.
R1 Gi0/1.12
Refer to the exhibit. The Gigabit interfaces on both routers have been configured with subinterface numbers that match the VLAN numbers connected to them. PCs on VLAN 10 should be able to print to the P1 printer on VLAN 12. PCs on VLAN 20 should print to the printers on VLAN 22. What interface and in what direction should you place a standard ACL that allows printing to P1 from data VLAN 10, but stops the PCs on VLAN 20 from using the P1 printer? (Choose two.)
outbound
R2 S0/0/1
R1 S0/0/0
inbound
R1 Gi0/1.12
R2 Gi0/1.20
Switch(config)# no vlan 100
Switch(config-if)# no switchport access vlan 100
Switch(config-if)# no switchport trunk allowed vlan 100
Switch# delete flash:vlan.dat
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
RouterA(config-router)# network 192.168.2.0 255.255.255.0 0
RouterA(config-router)# network 192.168.2.0 0.0.0.255 0
RouterA(config)# router ospf 1
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
RouterA(config)# router ospf 0
interconnection of large-scale networks in wiring closets
network access to the user
fault isolation
high-speed backbone connectivity
static NAT
dynamic NAT
port address translation
DHCP
The two routers must include the inter-router link network in an OSPFv2 network command.
The OSPF hello or dead timers on each router must match.
The link interface subnet masks must match.
The two routers must include the inter-router link network in an OSPFv2 network command.
The OSPFv2 process ID must be the same on each router.
The OSPF hello or dead timers on each router must match.
The OSPFv2 process is enabled on the interface by entering the ospf process area-id command.
The link interface on each router must be configured with a link-local address.
the type of network link
the link router interface IP address and subnet mask
the cost of that link
the type of network link
the link bandwidth
the link next-hop IP address
the link router interface IP address and subnet mask
The internal hosts have to use a single public IPv4 address for external communication.
There is no end-to-end addressing.
The costs of readdressing hosts can be significant for a publicly addressed network.
The router does not need to alter the checksum of the IPv4 packets.
Refer to the exhibit. The partial configuration that is shown was used to configure router on a stick for VLANS 10, 30, and 50. However, testing shows that there are some connectivity problems between the VLANs. Which configuration error is causing this problem?
There is no IP address configured for the FastEthernet 0/0 interface.
A configuration for the native VLAN is missing.
The wrong VLAN has been configured on subinterface Fa0/0.50.
The VLAN IP addresses should belong to the same subnet.
Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4 address. What is the problem?
R1 is not configured as a DHCPv4 server.
A DHCP server must be installed on the same LAN as the host that is receiving the IP address.
The ip address dhcp command was not issued on the interface Gi0/1.
The ip helper-address command was applied on the wrong interface.
They use hop count as their only metric.
They send their routing tables to directly connected neighbors.
They flood the entire network with routing updates.
They only send out updates when a new network is added.
Switch(config-if)# switchport mode trunk
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
Static routing does not advertise over the network, thus providing better security.
Static routing typically uses less network bandwidth and fewer CPU operations than dynamic routing does.
The path a static route uses to send data is known.
No intervention is required to maintain changing route information.
Static routing does not advertise over the network, thus providing better security.
Static routing typically uses less network bandwidth and fewer CPU operations than dynamic routing does.
Configuration of static routes is error-free.
Static routes scale well as the network grows.
show active SSH ports on the switch
disconnect SSH connected hosts
create a public and private key pair
show SSH connected hosts
access the SSH database configuration
the destination MAC address and the outgoing port
the source MAC address and the incoming port
the source and destination MAC addresses and the incoming port
the source MAC address and the outgoing port
the source and destination MAC addresses and the outgoing port
the destination MAC address and the incoming port
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 IPv6 DHCP pool configuration has no IPv6 address range specified.
The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
The default gateway address is not provided in the pool.
No clients have communicated with the DHCPv6 server yet.
What is the problem preventing PC0 and PC1 from communicating with PC2 and PC3?
The routers are using different OSPF process IDs.
The serial interfaces of the routers are in different subnets.
No router ID has been configured on the routers.
The gigabit interfaces are passive.
Which command will create a static route on R2 in order to reach PC B?
R1(config)# ip route 172.16.2.0 255.255.255.0 172.16.2.254
R1(config)# ip route 172.16.2.0 255.255.255.0 172.16.3.1
R1(config)# ip route 172.16.2.1 255.255.255.0 172.16.3.1
R1(config)# ip route 172.16.3.0 255.255.255.0 172.16.2.254
The no shutdown command has not been issued on the interface.
There is an IP address conflict with the configured address on the interface.
A cable has not been attached to the port.
An encapsulation mismatch has occurred.
source address and wildcard mask
destination address and wildcard mask
access list number between 100 and 199
source subnet mask and wildcard mask
default gateway address and wildcard mask
source address and wildcard mask
destination subnet mask and wildcard mask
access list number between 1 and 99
destination address and wildcard mask
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.
a DHCPREQUEST unicast message
a DHCPREQUEST broadcast message
a DHCPDISCOVER broadcast message
a DHCPDISCOVER unicast message
They request more information about their databases.
They negotiate the election process if they are on a multiaccess network.
They exchange DBD packets in order to advertise parameters such as hello and dead intervals.
They exchange abbreviated lists of their LSDBs
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 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 IPv6 addresses and translates them to global IPv6 addresses.
The native VLAN is for routers and switches to exchange their management information, so it should be different from data VLANs.
A separate VLAN should be used to carry uncommon untagged frames to avoid bandwidth contention on data VLANs.
The native VLAN is for carrying VLAN management traffic only.
The security of management frames that are carried in the native VLAN can be enhanced
ip helper-address
ip address dhcp
ip dhcp pool
service dhcp
IPv6 routing is enabled by default on Cisco routers.
IPv6 routes appear in the same routing table as IPv4 routes.
IPv6 uses the link-local address of neighbors as the next-hop address for dynamic routes.
IPv6 only supports the OSPF and EIGRP routing protocols
ip route 172.16.32.0 255.255.0.0 S0/0/0 100
ip route 172.16.32.0 255.255.224.0 S0/0/0 200
ip route 172.16.0.0 255.255.240.0 S0/0/0 200
ip route 172.16.0.0 255.255.224.0 S0/0/0 100
Refer to the exhibit. How many broadcast and collision domains exist in the topology?
5 broadcast domains and 11 collision domains
10 broadcast domains and 5 collision domains
16 broadcast domains and 11 collision domains
5 broadcast domains and 10 collision domains
show running-config
show processes
show cdp neighbor
show access-lists
show ip route
show running-config
IPsec
DNS
Telnet
HTTP
ICMP
Which keyword is displayed on the web browser?
NAT works!
Goodjob!
Welldone!
NAT configured!
Refer to the exhibit.
What summary static address would be configured on R1 to advertise to R3?
192.168.0.0/24
192.168.0.0/23
192.168.0.0/22
192.168.0.0/21
Static routes are configured by the use of the ____________ global configuration command.
dynamic desirable – dynamic desirable
dynamic desirable – trunk
dynamic desirable – dynamic auto
dynamic auto – dynamic auto
access – dynamic auto
dynamic desirable – dynamic desirable
access – trunk
dynamic desirable – trunk
The OSPF Type 1 packet is the _________ packet.
routing protocol
outgoing interface
metric
administrative distance
The default administrative distance for a static route is ________.
Static routes are configured by the use of the global configuration command.
Router R3 will become the DR and router R1 will become the BDR.
Router R1 will become the DR and router R2 will become the BDR.
Router R4 will become the DR and router R3 will become the BDR.
Router R1 will become the DR and router R2 will become the BDR.
The access list permits or denies specific addresses from entering the device doing the translation.
The access list defines the private IP addresses that are to be translated.
The access list prevents external devices from being a part of the address translation.
The access list defines the valid public addresses for the NAT or PAT pool.
-access-class 5 in
-ip access-group 5 out
-access-list standard VTY
permit 10.7.0.0 0.0.0.127
-access-list 5 deny any
-access-list 5 permit 10.7.0.0 0.0.0.31
-ip access-group 5 in
-access-class 5 in
The control and management traffic on the error-occurring trunk port is being misdirected or dropped.
Unexpected traffic on the error-occurring trunk port is being received.
All traffic on the error-occurring trunk port is being misdirected or dropped.
All traffic on the error-occurring trunk port is being switched correctly regardless of the error.
The native VLAN traffic will be untagged across the trunk link.
This VLAN is necessary for remote management of a switch.
Designed to carry traffic that is generated by users, this type of VLAN is also known as the default 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.
High priority traffic, such as voice traffic, uses the native VLAN.
Add the next hop neighbor address of 198.51.0.8.
Change the administrative distance to 1.
Change the destination network to 198.51.0.5.
Change the administrative distance to 120.
SW-A will drop the frame because it is invalid.
SW-A will leave both tags on the frame and send it to SW-B, which will forward it to hosts on VLAN 40.
SW-A will remove both tags and forward the rest of the frame across the trunk link, where SW-B will forward the frame to hosts on VLAN 40.
SW-A will remove the outer tag and send the rest of the frame across the trunk link, where SW-B will forward the frame to hosts on VLAN 12.
OSPFv3 routers use a different metric than OSPFv2 routers use.
OSPFv3 routers do not need to elect a DR on multiaccess segments.
OSPFv3 routers do not need to have matching subnets to form neighbor adjacencies.
OSPFv3 routers use a 128 bit router ID instead of a 32 bit ID.
Place the two attached switch ports in access mode.
Change the native VLAN on both ports.
Configure attached switch ports with the nonegotiate command option.
Configure attached switch ports with the dynamic desirable command option.
Configure one port with the dynamic auto command option and the opposite attached switch port with the dynamic desirable command option.
Place the two attached switch ports in access mode.
to determine if the switch is forwarding the broadcast traffic correctly
to determine which ports are functioning
to determine which ports are not correctly configured to prevent MAC address flooding
to determine when the CAM table size needs to be increased in order to prevent overflows
router(config-router)# network 172.16.1.0 0.0.255.255 area 0
router(config-router)# network 172.16.0.0 0.0.15.255 area 0
router(config-router)# network 172.16.1.0 255.255.255.0 area 0
router(config-router)# network 172.16.1.0 0.0.0.0 area 0
Refer to the exhibit. Which type of IPv6 static route is configured in the exhibit?
fully specified static route
recursive static route
directly attached static route
floating static route
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.224
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.224
Flash
NVRAM
RAM
ROM
off
restrict
protect
shutdown
access-group 11 in
access-class 11 in
access-list 11 in
access-list 110 in
What address will summarize the LANs attached to routers 2-A and 3-A and can be configured in a summary static route to advertise them to an upstream neighbor?
10.0.0.0/24
10.0.0.0/23
10.0.0.0/22
10.0.0.0/21
deny tcp any host 2001:db8:48:1c::50 eq 80
deny ipv6 any any
permit tcp any host 2001:db8:48:1c::50 eq 80
deny tcp host 2001:db8:48:1c::50 any eq 80
deny tcp any host 2001:db8:48:1c::50 eq 80
permit ipv6 any any
deny ipv6 any any
ip access-group WebFilter in
ipv6 traffic-filter WebFilter in
192.168.5.64
192.168.5.0
192.168.0.0
No address is displayed.
An ACL preventing FTP and HTTP access to the interval web server from all teaching assistants has been implemented in the Board Office. The address of the web server is 172.20.1.100 and all teaching assistants are assigned addresses in the 172.21.1.0/24 network. After implement the ACL, access to all servers is denied. What is the problem?
inbound ACLs must be routed before they are processed
the ACL is implicitly denying access to all the servers
named ACLs requite the use of port numbers
the ACL is applied to the interface using the wrong direction
Each router builds a Link-State Packet (LSP) containing the state of each directly connected link > step 3
Each router learns about its own directly connected networks. > step 1
Each router floods the LSP to all neighbors, who then store all LSPs received in a database > step 4
Each router uses the database to construct a complete map of the topology and computes the best > step 5
A. step 1
B. step 2
C. step 3
D. step 4
E. step 5
Each router is responsible for “saying hello” to its neighbors on directly connected networks.
Each router builds a Link-State Packet (LSP) containing the state of each directly connected link
Each router learns about its own directly connected networks.
Each router increments the hop count for the destination network.
Each router floods the LSP to all neighbors, who then store all LSPs received in a database
Each router uses the database to construct a complete map of the topology and computes the best
0.0.0.31
0.0.0.255
0.0.0.127
0.0.0.63
