Topic 1: Exam Pool A
desc about topic
Which network allows devices to communicate without the need to access the Internet?
A.
1729.0.0/16
B.
172.28.0.0/16
C.
192.0.0.0/8
D.
209.165.201.0/24
172.28.0.0/16
Explanation: The private ranges of each class of IPv4 are listed below:
Class A private IP address ranges from 10.0.0.0 to 10.255.255.255 Class B private IP
address ranges from 172.16.0.0 to 172.31.255.255 Class C private IP address ranges from
192.168.0.0 to 192.168.255.255 Only the network 172.28.0.0/16 belongs to the private IP
address (of class B).
What mechanism carries multicast traffic between remote sites and supports encryption?
A.
ISATAP
B.
GRE over iPsec
C.
iPsec over ISATAP
D.
GRE
GRE over iPsec
What is a benefit of VRRP?
A.
It provides traffic load balancing to destinations that are more than two hops from the
source.
B.
It provides the default gateway redundancy on a LAN using two or more routers.
C.
It allows neighbors to share routing table information between each other.
D.
It prevents loops in a Layer 2 LAN by forwarding all traffic to a root bridge, which then makes the final forwarding decision.
It provides the default gateway redundancy on a LAN using two or more routers.
Refer to the exhibit.
An engineer configured NAT translations and has verified that the configuration is correct.
Which IP address is the source IP?
A.
10.4.4.4
B.
10.4.4.5
C.
172.23.103.10
D.
172.23.104.4
172.23.104.4
Explanation: NAT is used to send a packet to the outside network, using a public IP
address to make it routable. The NAT logic is "inside-to-outside" FIRST and "outside-toinside"
THEN. This way, configuring NAT means "choosing a public IP address" for any
outbound packet" IN THE FIRST PLACE, where "public IP address" translates to "inside
global address". Among the given answers, the only inside global address is
172.123.104.4.
Refer to the exhibit.
What commands are needed to add a subinterface to Ethernet0/0 on R1 to 20, with IP address 10.20.20.1/24?
A.
R1(config)#interface ethernet0/0
R1(config)#encapsulation dot1q 20
R1(config)#ip address 10.20.20.1 255.255.255.0
B.
R1(config)#interface ethernet0/0.20
R1(config)#encapsulation dot1q 20
R1(config)#ip address 10.20.20.1 255.255.255.0
C.
R1(config)#interface ethernet0/0.20
R1(config)#ip address 10.20.20.1 255.255.255.0
D.
R1(config)#interface ethernet0/0
R1(config)#ip address 10.20.20.1 255.255.255.0 allow for VLAN
R1(config)#interface ethernet0/0.20
R1(config)#encapsulation dot1q 20
R1(config)#ip address 10.20.20.1 255.255.255.0
Refer to the exhibit.
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Option A
What uses HTTP messages to transfer data to applications residing on different hosts?
A.
OpenFlow
B.
OpenStack
C.
OpFlex
D.
REST
REST
How are the switches in a spine-and-leaf topology interconnected?
A.
Each leaf switch is connected to one of the spine switches.
B.
Each leaf switch is connected to two spine switches, making a loop.
C.
Each leaf switch is connected to each spine switch.
D.
Each leaf switch is connected to a central leaf switch, then uplinked to a core spine switch.
Each leaf switch is connected to two spine switches, making a loop.
Where is the interface between the control plane and data plane within the softwaredefined architecture?
A.
control layer and the infrastructure layer
B.
application layer and the infrastructure layer
C.
control layer and the application layer
D.
application layer and the management layer
control layer and the infrastructure layer
Drag and drop the functions from the left onto the correct network components on the right 
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