Topic 2, Exam B
What is the purpose of an SSID?
A.
It provides network security
B.
It differentiates traffic entering access posits
C.
It identities an individual access point on a WLAN
D.
It identifies a WLAN
It identifies a WLAN
Explanation: “In IEEE 802.11 wireless local area networking standards (including Wi-Fi), a
service set is a group of wireless network devices which share a service set identifier
(SSID)… A service set forms a logical network of nodes operating with shared link-layer
networking parameters; they form one logical network segment.“
Which type of API allows SDN controllers to dynamically make changes to the network?
A.
northbound API
B.
REST API
C.
SOAP API
D.
southbound API
southbound API
Explanation:
Cisco overview doc for SDN here:
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/VMDC/SDN/SDN.
html
What does an SDN controller use as a communication protocol to relay forwarding changes to a southbound API?
A.
OpenFlow
B.
Java
C.
REST
D.
XML
OpenFlow
How does the dynamically-learned MAC address feature function?
A.
The CAM table is empty until ingress traffic arrives at each port
B.
Switches dynamically learn MAC addresses of each connecting CAM table.
C.
The ports are restricted and learn up to a maximum of 10 dynamically-learned
addresses
D.
It requires a minimum number of secure MAC addresses to be filled dynamically
The CAM table is empty until ingress traffic arrives at each port
What are two characteristics of a controller-based network? (Choose two)
A.
The administrator can make configuration updates from the CLI
B.
It uses northbound and southbound APIs to communicate between architectural layers
C.
It moves the control plane to a central point.
D.
It decentralizes the control plane, which allows each device to make its own forwarding
decisions
E.
It uses Telnet to report system issues.
It uses northbound and southbound APIs to communicate between architectural layers
It moves the control plane to a central point.
Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 users
to the network. Which IPv4 network and subnet mask combination does the engineer
assign to minimize wasting addresses?
A.
10.10.225.48 255.255.255.240
B.
10.10.225.32 255.255.255.240
C.
10.10.225.48 255.255.255.224
D.
10.10.225.32 255.255.255.224
10.10.225.32 255.255.255.224
Refer to the exhibit.
What is the effect of this configuration?
A.
All ARP packets are dropped by the switch
B.
Egress traffic is passed only if the destination is a DHCP server.
C.
All ingress and egress traffic is dropped because the interface is untrusted
D.
The switch discard all ingress ARP traffic with invalid MAC-to-IP address bindings.
The switch discard all ingress ARP traffic with invalid MAC-to-IP address bindings.
Which action is taken by a switch port enabled for PoE power classification override?
A.
When a powered device begins drawing power from a PoE switch port a syslog message is generated
B.
As power usage on a PoE switch port is checked data flow to the connected device is
temporarily paused
C.
If a switch determines that a device is using less than the minimum configured power it
assumes the device has failed and disconnects
D.
Should a monitored port exceeds the maximum administrative value for power, the port
is shutdown and err-disabled
Should a monitored port exceeds the maximum administrative value for power, the port
is shutdown and err-disabled
Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-
2SX/configuration/guide/book/power_over_ethernet.pdf
PoE monitoring and policing compares the power consumption on ports with the
administrative maximum value (either a configured maximum value or the port’s default
value). If the power consumption on a monitored port exceeds the administrative maximum
value, the following actions occur:– A syslog message is issued.– The monitored port is
shut down and error-disabled.– The allocated power is freed
Refer to the exhibit.
Which configuration issue is preventing the OSPF neighbor relationship from being
established between the two routers?
A.
R2 is using the passive-interface default command
B.
R1 has an incorrect network command for interface Gi1/0
C.
R2 should have its network command in area 1
D.
R1 interface Gil/0 has a larger MTU size
R1 interface Gil/0 has a larger MTU size
Which IPv6 address type provides communication between subnets and is unable to route on the Internet?
A.
global unicast
B.
unique local
C.
link-local
D.
multicast
unique local
An engineer is configuring NAT to translate the source subnet of 10.10.0.0/24 to any of
three addresses 192.168.30.1, 192.168.3.2, 192.168.3.3 Which configuration should be
used?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Option C
How does CAPWAP communicate between an access point in local mode and a WLC?
A.
The access point must directly connect to the WLC using a copper cable
B.
The access point must not be connected to the wired network, as it would create a loop
C.
The access point must be connected to the same switch as the WLC
D.
The access point has the ability to link to any switch in the network, assuming
connectivity to the WLC
The access point has the ability to link to any switch in the network, assuming
connectivity to the WLC
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