Topic 1: Exam Pool A
desc about topic
What are two roles of Domain Name Services (DNS)? (Choose Two)
A.
builds a flat structure of DNS names for more efficient IP operations
B.
encrypts network Traffic as it travels across a WAN by default
C.
improves security by protecting IP addresses under Fully Qualified Domain Names
(FQDNs)
D.
enables applications to identify resources by name instead of IP address
E.
allows a single host name to be shared across more than one IP address
enables applications to identify resources by name instead of IP address
allows a single host name to be shared across more than one IP address
A manager asks a network engineer to advise which cloud service models are used so
employees do not have to waste their time installing, managing, and updating software
which is only used occasionally Which cloud service model does the engineer recommend?
A.
infrastructure-as-a-service
B.
platform-as-a-service
C.
business process as service to support different types of service
D.
software-as-a-service
software-as-a-service
If a notice-level messaging is sent to a syslog server, which event has occurred?
A.
A network device has restarted
B.
An ARP inspection has failed
C.
A routing instance has flapped
D.
A debug operation is running
A routing instance has flapped
Explanation: Usually no action is required when a route flaps so it generates the
notification syslog level message (level 5).
What is the function of a hub-and-spoke WAN topology?
A.
allows access restrictions to be implemented between subscriber sites.
B.
provides direct connections between subscribers
C.
supports Layer 2 VPNs
D.
supports application optimization
provides direct connections between subscribers
Which type of information resides on a DHCP server?
A.
a list of the available IP addresses in a pool
B.
a list of public IP addresses and their corresponding names
C.
usernames and passwords for the end users in a domain
D.
a list of statically assigned MAC addresses
a list of the available IP addresses in a pool
Which device tracks the state of active connections in order to make a decision to forward a packet through?
A.
wireless access point
B.
firewall
C.
wireless LAN controller
D.
router
firewall
Explanation:
Stateful inspection, also known as dynamic packet filtering, is a firewall technology that
monitors the state of active connections and uses this information to determine which
network packets to allow through the firewall.
Which command is used to specify the delay time in seconds for LLDP to initialize on any interface?
A.
lldp timer
B.
lldp holdtimt
C.
lldp reinit
D.
lldp tlv-select
lldp reinit
Reference:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-
2_37_ey/configuration/guide/scg/swlldp.pdf
+ lldp holdtime seconds: Specify the amount of time a receiving device should hold the
information from your device before discarding it+ lldp reinit delay: Specify the delay time in
seconds for LLDP to initialize on an interface+ lldp timer rate: Set the sending frequency of
LLDP updates in seconds
What is an advantage of Cisco DNA Center versus traditional campus device
management?
A.
It supports numerous extensibility options including cross-domain adapters and thirdparty SDKs.
B.
It supports high availability for management functions when operating in cluster mode.
C.
It enables easy autodiscovery of network elements m a brownfield deployment.
D.
It is designed primarily to provide network assurance.
It supports numerous extensibility options including cross-domain adapters and thirdparty SDKs.
Which two functions are performed by the core layer in a three-tier architecture? (Choose two)
A.
Provide uninterrupted forwarding service.
B.
Police traffic that is sent to the edge of the network.
C.
Provide direct connectivity for end user devices.
D.
Ensure timely data transfer between layers.
E.
Inspect packets for malicious activity.
Provide uninterrupted forwarding service.
Ensure timely data transfer between layers.
Explanation: Cisco is very clear about the purpose of this layer. Its only role is to forward
traffic, the fastest it can. Here you don’t apply any policy, as you must try to reduce the load
of the core so it can focus on routing.
https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Campus/campover.html#wp708
831
Refer to the exhibit.
What is the next hop address for traffic that is destined to host 10.0.1.5?
A.
10.0.1.3
B.
10.0.1.50
C.
10.0.1.4
D.
Loopback D
10.0.1.50
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