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Cisco Designing Cisco Enterprise Networks Sample Questions (Q28-Q33):

NEW QUESTION # 28
Which option will help build your customers platform during the discovery phase?

A. business case
B. PO
C. POV report
D. high-level design
E. detailed design

Answer: A

NEW QUESTION # 29
How would Cisco ISE handle authentication for your printer that does not have a supplicant?

A. ISE would authenticate the printer using 802.1X authentication.
B. ISE would not authenticate the printer as printers are not subject to ISE authentication.
C. ISE would authenticate the printer using MAC RADIUS authentication.
D. ISE would authenticate the printer using web authentication.
E. ISE would authenticate the printer using MAB.

Answer: E

Explanation:
Cisco ISE can handle authentication for printers that do not have a supplicant using MAB (MAC Authentication Bypass). MAB is a method of authenticating devices based on their MAC address. MAB is useful for devices that do not support 802.1X or other authentication protocols, such as printers, cameras, or IoT devices. MAB works as follows:
* The device sends an Ethernet frame with its MAC address as the source address.
* The switch sends a RADIUS Access-Request message to ISE with the MAC address as the username and password.
* ISE checks the MAC address against a database of known devices or an identity source sequence.
* If the MAC address is found and authorized, ISE sends a RADIUS Access-Accept message to the switch with the appropriate authorization profile.
* The switch applies the authorization profile to the device and grants it access to the network.
MAB is less secure than 802.1X, as MAC addresses can be spoofed or cloned. Therefore, MAB should be used with caution and combined with other security measures, such as profiling, posture, or endpoint protection. MAB should also be restricted to specific ports or VLANs that are isolated from the rest of the network.
References:
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Configure MAC Authentication Bypass [Cisco Identity Services Engine]
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Manage Authentication Policies
[Cisco Identity Services Engine]
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Manage Authorization Policies
[Cisco Identity Services Engine]
* Cisco Identity Services Engine Administrator Guide, Release 2.7 - Manage Identity Source Sequences
[Cisco Identity Services Engine]
* Cisco Identity Services Engine API Reference Guide, Release 2.7 - Authentication [Cisco Identity Services Engine]
* Designing Cisco Enterprise Networks (ENDESIGN) Exam Topics [Cisco]
* Cisco Validated Design Guides [Cisco]

NEW QUESTION # 30
Which two statements regarding Cisco SD-WAN vEdge routers can mitigate DoS attacks against the infrastructure? (Choose two.)

A. The vEdge routers run on hardened Linux operating systems.
B. Only authorized controllers are allowed to communicate back to the vEdg e router after the vEdge router establishes connection with the controllers.
C. Open Certificate Authority and automated enrollment feature.
D. By default, all incoming traffic is denied at the transport (WAN) side interfaces.
E. In case of direct Internet access, the only traffic allowed back is the traffic matching the state table entries on the vEdge router.

Answer: B,D

Explanation:
Explanation
Cisco SD-WAN vEdge routers can mitigate DoS attacks against the infrastructure by using two mechanisms:
Only authorized controllers are allowed to communicate back to the vEdge router after the vEdge router establishes connection with the controllers. This means that the vEdge router initiates a secure connection to the vSmart controller and the vBond orchestrator using DTLS or TLS, and verifies their identity using certificates. The vEdge router does not accept any incoming connections from the controllers, and only responds to the messages that match the established sessions. This prevents unauthorized or malicious traffic from reaching the vEdge router and consuming its resources12.
By default, all incoming traffic is denied at the transport (WAN) side interfaces. This means that the vEdge router applies an implicit deny-all policy to any traffic that arrives from the WAN side, unless it is explicitly allowed by a security policy. The security policy can be configured to permit only the traffic that matches certain criteria, such as source, destination, protocol, port, or application. This reduces the attack surface of the vEdge router and protects it from unwanted or harmful traffic34.
References:
Cisco SD-WAN Security Features
Cisco SD-WAN Design Guide
Cisco SD-WAN Security Policy Configuration Guide
Cisco SD-WAN vEdge Routers Denial of Service Vulnerability

NEW QUESTION # 31
What are three ways in Which Cisco ISE learns information about devices? (Choose three,)

A. network servers the device has accessed
B. RADIUS attributes
C. user authentication to the ISE
D. RPC mechanism via HTTPS
E. SMIP agents
F. traffic generated by the device

Answer: A,C,F

NEW QUESTION # 32
Which element of the Cisco SD-WAN architecture facilitates the functions of controller discovery and NAT traversal?

A. vEdge
B. vManage
C. vSmart controller
D. vBond orchestrator

Answer: D

Explanation:
The vBond orchestrator is an SD-WAN router responsible for authenticating and orchestratingconnectivity between the vSmart controllers and SD-WAN routers. It is the sole device in the network that requires a public IP address for all SD-WAN devices to connect to it. The vBond orchestrator has three major functions:
* Controller discovery: The vBond orchestrator acts as the initial point of contact for all SD-WAN components that join the network. It authenticates the devices using pre-installed credentials and assigns them to a vSmart controller. The vBond orchestrator also provides the IP addresses of the vSmart controllers and the vManage NMS to the SD-WAN routers.
* NAT traversal: The vBond orchestrator facilitates the establishment of secure DTLS or TLS tunnels between the SD-WAN components that are behind NAT devices. The vBond orchestrator acts as a rendezvous point for the NATed devices and helps them exchange their public IP addresses and port numbers. The vBond orchestrator also performs NAT keepalive and hole punching to maintain the NAT bindings and prevent the NAT devices from timing out the sessions.
* Certificate management: The vBond orchestrator acts as the certificate authority (CA) for the SD-WAN network. It generates and signs the certificates for the SD-WAN components and distributes them to the devices. The certificates are used to authenticate the devices and encrypt the control and data plane traffic.
References:
* Cisco SD-WAN Architecture Overview
* Cisco Catalyst SD-WAN Getting Started Guide
* New Training: Identify Cisco SD-WAN Components

NEW QUESTION # 33
......

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Pass Cisco Designing Cisco Enterprise Networks Exam in First Attempt Guaranteed!

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