ccna2 theory 120-135 Flashcards
A new Layer 3 switch is connected to a router and is being configured for interVLAN routing. What are three of the five steps required for the configuration? (Choose three.)
Case 7 (NEW):
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Which three statements accurately describe duplex and speed settings on Cisco 2960 switches? (Choose three.)
An autonegotiation failure can result in connectivity issues.
When the speed is set to 1000 Mb/s, the switch ports will operate in full-duplex mode.
The duplex and speed settings of each switch port can be manually configured.
Refer to the exhibit. A network administrator configures R1 for inter-VLAN routing between VLAN 10 and VLAN 20. However, the devices in VLAN 10 and VLAN 20 cannot communicate. Based on the configuration in the exhibit, what is a possible cause for the problem?
B. The encapsulation is misconfigured on a subinterface.
A network administrator uses the spanning-tree portfast bpduguard default global configuration command to enable BPDU guard on a switch. However, BPDU guard is not activated on all access ports. What is the cause of the issue?
PortFast is not configured on all access ports.
Which two types of spanning tree protocols can cause suboptimal traffic flows because they assume only one spanning-tree instance for the entire bridged network? (Choose two.)
RSTP
STP
Refer to the exhibit. A network administrator is configuring the router R1 for IPv6 address assignment. Based on the partial configuration, which IPv6 global unicast address assignment scheme does the administrator intend to implement?
stateful
A WLAN engineer deploys a WLC and five wireless APs using the CAPWAP protocol with the DTLS feature to secure the control plane of the network devices. While testing the wireless network, the WLAN engineer notices that data traffic is being exchanged between the WLC and the APs in plain-text and is not being encrypted. What is the most likely reason for this?
Although DTLS is enabled by default to secure the CAPWAP control channel, it is disabled by default for the data channel.
A new switch is to be added to an existing network in a remote office. The network administrator does not want the technicians in the remote office to be able to add new VLANs to the switch, but the switch should receive VLAN updates from the VTP domain. Which two steps must be performed to configure VTP on the new switch to meet these conditions? (Choose two.)
Configure the new switch as a VTP client.
Configure the existing VTP domain name on the new switch.
Refer to the exhibit. Consider that the main power has just been restored. PC3 issues a broadcast IPv4 DHCP request. To which port will SW1 forward this request?
to Fa0/1, Fa0/2, and Fa0/3 only
What action takes place when the source MAC address of a frame entering a switch is not in the MAC address table?
The switch adds the MAC address and incoming port number to the table.
or
The switch adds the MAC address and incoming port number to the table.
Employees are unable to connect to servers on one of the internal networks. What should be done or checked?
Use the “show ip interface brief” command to see if an interface is down.
What is the effect of entering the ip dhcp snooping configuration command on a switch?
It enables DHCP snooping globally on a switch.
An administrator notices that large numbers of packets are being dropped on one of the branch routers. What should be done or checked?
Check the routing table for a missing static route.
What are two switch characteristics that could help alleviate network congestion? (Choose two.)
fast internal switching
large frame buffers
What is a result of connecting two or more switches together?
The size of the broadcast domain is increased.
