QUESTION 81
What is a function of a southbound API?
A. Manage flow control between an SDN controller and a switching fabric.
B. Automate configuration changes between a server and a switching fabric.
C. Facilitate the information exchange between an SDN controller and application.
D. Use orchestration to provision a virtual server configuration from a web server.
Correct Answer: A
QUESTION 82
How is noise defined in Wi-Fi?
A. measured difference between the desired Wi-Fi signal and an interfering Wi-Fi signal
B. any interference that is not Wi-Fi traffic that degrades the desired signal
C. signals from other Wi-Fi networks that interfere with the local signal
D. ratio of signal-to-noise rating supplied by the wireless device
Correct Answer: B
QUESTION 83
Which IPsec encryption mode is appropriate when the destination of a packet differs from the security termination point?
A. aggressive
B. main
C. tunnel
D. transport
Correct Answer: C
QUESTION 84
How does frame switching function on a switch?
A. performs a lookup to learn the destination interface
B. populates the ARP table with the egress port
C. modifies frames that contain a known source VLAN
D. inspects and drops frames from unknown destinations
Correct Answer: A
QUESTION 85
Which two HTTP verbs does a REST-based API call to update a resource? (Choose two.)
A. PATCH
B. DELETE
C. GET
D. POST
E. PUT
Correct Answer: AE
QUESTION 86
How does WPA3 improve security?
A. It uses SAE for authentication
B. It uses RC4 for encryption.
C. It uses a 4-way handshake for authentication.
D. It uses TKIP for encryption.
Correct Answer: A
QUESTION 87
Under which two circumstances is VRRP appropriate for a routed network? (Choose two.)
A. when the network design requires virtual gateways between two routers
B. when Ethernet-interface redundancy is required
C. when gateway load-balancing is required
D. when the network uses only Cisco network devices
E. when the network uses a mix of Cisco and third-party network devices
Correct Answer: AE
QUESTION 88
How does HSRP provide first hop redundancy?
A. It forwards multiple packets to the same destination over different routed links in the data path.
B. It load-balances traffic by assigning the same metric value to more than one route to the same destination in the IP routing table.
C. It uses a shared virtual MAC and a virtual IP address to a group of routers that serve as the default gateway for hosts on a LAN
D. It load-balances Layer 2 traffic along the path by flooding traffic out all interfaces configured with the same VLAN.
Correct Answer: C
QUESTION 89
Which syslog severity level is considered the most severe and results in the system being considered unusable?
A. Emergency
B. Critical
C. Alert
D. Error
Correct Answer: A
QUESTION 90
What is the default port-security behavior on a trunk link?
A. It causes a network loop when a violation occurs.
B. It disables the native VLAN configuration as soon as port security is enabled.
C. It places the port in the err-disabled state after 10 MAC addresses are statically configured.
D. It places the port in the err-disabled state if it learns more than one MAC address.
Correct Answer: D
QUESTION 91
Which mechanism is used to ensure that a new key exchange takes place with every session within IPsec?
A. 3DES
B. SHA
C. PFS
D. AES
Correct Answer: C
QUESTION 92
Which feature is mandatory when configuring a new SSID for a wireless network running WPA3-Personal mode?
A. Enhanced Open
B. Protected Management Frame
C. Opportunistic Wireless Encryption
D. Fast Transition
Correct Answer: B
QUESTION 93
Which SDN plane forwards user-generated traffic?
A. data plane
B. management plane
C. control plane
D. policy plane
Correct Answer: A
QUESTION 94
What software defined architecture plane assists network devices with making packet-forwarding decisions by providing Layer 2 reachability and Layer 3 routing
information?
A. data plane
B. control plane
C. policy plane
D. management plane
Correct Answer: B
QUESTION 95
Which role does a hypervisor provide for each virtual machine in server virtualization?
A. software-as-a-service
B. services as a hardware controller
C. infrastructure-as-a-service
D. control and distribution of physical resources
Correct Answer: D
QUESTION 96
What is the recommended switch load-balancing mode for Cisco WLCs?
A. destination MAC address
B. source-destination IP address
C. source-destination MAC address
D. destination IP address
Correct Answer: B
QUESTION 97
What is a functionality of HSRP?
A. It uses virtual MAC addressing to provide gateway redundancy on a LAN.
B. It enlists gratuitous ARP to update a client’s ARP cache when the active router switches over.
C. It requires active and standby routes to provide failover in the case of a router failure.
D. It provides router redundancy and route reconvergence when a router fails.
Correct Answer: A
QUESTION 98
An email user has been lured into clicking a link in an email sent by their company’s security organization. The webpage that opens reports that it was safe, but the
link could have contained malicious code. Which type of security program is in place?
A. social engineering attack
B. user awareness
C. brute force attack
D. physical access control
Correct Answer: B
QUESTION 99
What are the two main capabilities of tunnel mode in IPsec site-to-site VPNs? (Choose two.)
A. It authenticates the data field in original packet.
B. It secures only the data field in the packet.
C. It inserts a new IPsec header with new IP address.
D. It encrypts the complete IP packet with the data field.
E. It transmits with the original packet header visible.
Correct Answer: CD
QUESTION 100
In software defined architectures, which plane is distributed and responsible for traffic forwarding?
A. management plane
B. policy plane
C. control plane
D. data plane
Correct Answer: D