Network Components final
A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?
61440
What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?
64
Which problem is evident if the show ip interface command shows that the interface is down and the line protocol is down?
A cable has not been attached to the port.
What is the significant difference between a hub and a Layer 2 LAN switch?
A hub extends a collision domain, and a switch divides collision domains
A network administrator is implementing DHCPv6 for the company. The administrator configures a router to send RA messages with M flag as 1 by using the interface command ipv6 nd managed-config-flag . What effect will this configuration have on the operation of the clients?
Clients must use all configuration information that is provided by a DHCPv6 server
After sticky learning of MAC addresses is enabled, what action is needed to prevent dynamically learned MAC addresses from being lost in the event that an associated interface goes down?
Copy the running configuration to the startup configuration
Refer to the exhibit. A network administrator is configuring DAI on switch SW1. What is the result of entering the exhibited commands?
DAI will validate both source and destination MAC addresses as well as the IP addresses in the order specified. If all parameters are valid then the ARP packet is allowed to pass
Which type of DHCP message is used to locate any available DHCP server on a network?
DHCPDiscover
What is the best way to prevent a VLAN hopping attack?
Disable trunk negotiation for trunk ports and statically set nontrunk ports as access ports
Which Cisco solution helps prevent ARP spoofing and ARP poisoning attacks?
Dynamic ARP Inspection
Which DTP mode on a switch actively attempts to convert the link to a trunk?
Dynamic desirable
A network engineer is configuring a LAN with a redundant first hop to make better use of the available network resources. Which protocol should the engineer implement?
GLBP
Which of the following FHRP protocols is a Cisco proprietary protocol that provides load sharing in addition to redundancy?
HSRP
A technician is configuring a new Cisco 2960 switch. What is the effect of issuing the BranchSw(config)#interface VLAN88 command?
It returns to global configuration mode.
Which statement describes the behavior of a switch when the MAC address table is full?
It treats frames as unknown unicast and floods all incoming frames to all ports within the local VLAN
What is the outcome of a Layer 2 broadcast storm?
New traffic is discarded by the switch because it is unable to be processed
What is an advantage of PVST+?
PVST+ optimizes performance on the network through load sharing
A network administrator of a college is configuring WLAN security with WPA2 Enterprise authentication. Which server is required when deploying this type of authentication?
RADIUS
Which of the following spanning tree features provides fast converging enhancements to IEEE 802.1D?
Rapid PVST+
Which protocol adds security to remote connections?
SSH
Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on switch SW1 is empty?
SW1 floods the frame on all ports on SW1, excluding the port through which the frame entered the switch.
A small publishing company has a network design such that when a broadcast is sent on the LAN, 200 devices receive the transmitted broadcast. How can the network administrator reduce the number of devices that receive broadcast traffic?
Segment the LAN into smaller LANs and route between them
A small coffee shop is offering free Wi-Fi to customers. The network includes a wireless router and a DSL modem that is connected to the local phone company. What method is typically used to configure the connection to the phone company?
Set the WAN connection in the wireless router as a DHCP client
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)# switchport mode trunk
Refer to the exhibit. Based on the command output shown, what is the status of the EtherChannel?
The EtherChannel is in use and functional as indicated by the SU and P flags in the command output
Refer to the exhibit. The users on the LAN network of R1 cannot receive an IPv6 address from the configured stateful DHCPv6 server. What is missing from the stateful DHCPv6 configuration on router R1?
The FA0/0 interface is missing the command that informs the clients to use stateful DHCPv6
Refer to the exhibit. PC-A and PC-B are both in VLAN 60. PC-A is unable to communicate with PC-B. What is the problem?
The VLAN that is used by PC-A is not in the list of allowed VLANs on the trunk
Refer to the exhibit. The administrator wants to enable port security on an interface on switch S1, but the command was rejected. Which conclusion can be drawn?
The interface must be initially configured with the switchport mode access command
A network administrator is configuring a WLC to provide WLAN access to users in an office building. When testing the newly created WLAN, the administrator does not see the SSID from a wireless device. What is a possible cause?
The new WLAN needs to be enabled
What is a result of connecting two or more switches together?
The size of the broadcast domain is increased.
Refer to the exhibit. Inter-VLAN communication between VLAN 10, VLAN 20, and VLAN 30 is not successful. What is the problem?
The switch interface FastEthernet0/1 is configured as an access interface and should be configured as a trunk interface
What is a potential issue when using the WLC to upgrade and deploy the latest firmware image to all APs?
Users will not be able to use the WLAN
Refer to the exhibit. The configuration shows commands entered by a network administrator for inter-VLAN routing. However, host H1 cannot communicate with H2. Which part of the inter-VLAN configuration causes the problem?
VLAN configuration
Which combination of WLAN authentication and encryption is recommended as a best practice for home users?
WPA2 and AES
What is the reason for disabling SSID broadcasting and changing the default SSID on a wireless access point?
Wireless clients must then have the SSID manually configured to connect to the wireless network
On which port should Dynamic ARP Inspection (DAI) be configured on a switch?
an uplink port to another switch
Which term describes the role of a Cisco switch in the 802.1X port-based access control?
authenticator
Which three components are combined to form a bridge ID?
extended system ID MAC address bridge priority
What are two switch characteristics that could help alleviate network congestion? (Choose two.)
fast internal switching, large frame buffers
In which two port states does a switch learn MAC addresses and process BPDUs in a PVST network? (Choose two.)
forwarding learning
Which command will start the process to bundle two physical interfaces to create an EtherChannel group via LACP?
interface range GigabitEthernet 0/4 - 5
What type of VLAN is configured specifically for network traffic such as SSH, Telnet, HTTPS, HTTP, and SNMP?
management VLAN
An employee connects wirelessly to the company network using a cell phone. The employee then configures the cell phone to act as a wireless access point that will allow new employees to connect to the company network. Which type of security threat best describes this situation?
rogue access point
Refer to the exhibit. A network administrator is troubleshooting a problem with EtherChannel. What command was used to produce the exhibited output?
show interfaces fastethernet 0/11 etherchannel
Which switching method ensures that the incoming frame is error-free before forwarding?
store-and-forward
Refer to the exhibit. DLS1 is connected to another switch, DLS2, via a trunk link. A host that is connected to DLS1 is not able to communicate to a host that is connected to DLS2, even though they are both in VLAN 99. Which command should be added to Fa0/1 on DLS1 to correct the problem?
switchport trunk native vlan 66
What are the two methods that a wireless NIC can use to discover an AP? (Choose two.)
transmitting a probe request receiving a broadcast beacon frame
Which type of traffic is designed for a native VLAN?
untagged
In what situation would a Layer 2 switch have an IP address configured?
when the Layer 2 switch needs to be remotely managed
