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New Cisco CCNP Data Center 642-997 Dumps Exam Questions And Answers (1-20)

Refer to the command below. When configuring an SVS connection on the Cisco Nexus 5000 Series Switch, which device is being referenced as the remote IP address?
nexus5500-2(config-svs-conn)# remote ip address port 80 vrf management
A. ESX or ESXi host
B. vCenter
C. vPC peer switch
D. Cisco IMC management
Correct Answer: B

This command specifies the hostname or IP address for the vCenter Server. Optionally, specifies the port number and VRF.

Which two statements about Cisco Nexus 7000 line cards are true? (Choose two.)
A. M1, M2, and F1 cards are allowed in the same VDC.
B. M line cards are service-oriented and likely face the access layer and provide Layer 2 connectivity.
C. F line cards are performance-oriented and likely connect northbound to the core layer for Layer 3 connectivity.
D. M line cards support Layer 2, Layer 3, and Layer 4 with large forwarding tables and a rich feature set.
E. The F2 line card must reside in the admin VDC.
Correct Answer: AD

Cisco is introducing a new line card called as F3 Module which has rich feature set and offers high performance 40G/100G port density to the Nexus 7000 product family. Cisco also introduced a new feature in NX-OS 6.2(2) where the F2e line card can be in the same VDC as M1 or M2 Line Card. The objective of this session is to cover detailed steps and methodology of migrating Nexus 7000 with VDC types prior to NX-OS 6.2 to the newer F3 or M/F2e VDC types. The session also covers the effect of VDC migration with commonly used Network features, firewall and load balancer services. M-Series XL modules support larger forwarding tables. M-Series modules are frequently required at network core, peering, and aggregation points. When used with the F1-Series, the M-Series modules provide inter-VLAN services and form a pool of Layer 3 resources for the system.

Which protocol is the foundation for unified fabric as implemented in Cisco NX-OS?
A. Fibre Channel
B. Data Center Bridging
C. Fibre Channel over Ethernet
D. N proxy virtualization
E. N Port identifier virtualization
Correct Answer: C

Fibre Channel over Ethernet (FCoE) is one of the major components of a Unified Fabric. FCoE is a new technology developed by Cisco that is standardized in the Fibre Channel Backbone 5 (FC-BB-5) working group of Technical Committee T11 of the International Committee for Information Technology Standards (INCITS). Most large data centers have huge installed bases of Fibre Channel and want a technology that maintains the Fibre Channel model. FCoE assumes a lossless Ethernet, in which frames are never dropped (as in Fibre Channel) and that therefore does not use IP and TCP.

By default it will take 10 seconds for authentication to fail due to an unresponsive RADIUS server before a Cisco Nexus series switch reverts to another RADIUS server or local authentication. What is one efficient way to improve the reaction time to a RADIUS server failure?
A. Decrease the global RADIUS retransmission count to 1.
B. Decrease the global RADIUS timeout interval to 5 seconds.
C. Configure the RADIUS retransmission count and timeout interval per server, versus globally.
D. Configure per server a test idle timer, along with a username and password.
Correct Answer: D

You can monitor the availability of RADIUS servers. These parameters include the username and password to use for the server and an idle timer. The idle timer specifies the interval during which a RADIUS server receives no requests before the Nexus 5000 Series switch sends out a test packet. You can configure this option to test servers periodically. The test idle timer specifies the interval during which a RADIUS server receives no requests before the Nexus 5000 Series switch sends out a test packet. The default idle timer value is 0 minutes. When the idle time interval is 0 minutes, the Nexus 5000 Series switch does not perform periodic RADIUS server monitoring.

Which statement about the Layer 3 card on the Cisco Nexus 5500 Series Switch is true?
A. BGP support is not provided, but RIP, EIGRP, and OSPF support is provided.
B. Up to two 4-port cards are supported with up to 160 Gb/s of Layer 3 forwarding capability.
C. Up to 16 FEX connections are supported.
D. Port channels cannot be configured as Layer 3 interfaces.
Correct Answer: C

From the Cisco NX-OS 5.1(3)N1(1) release and later releases, each Cisco Nexus 5500 Series device can manage and support up to 24 FEXs without Layer 3. With Layer 3, the number of FEXs supported per Cisco Nexus 5500 Series device is 8. With Enhanced vPC and a dual-homed FEX topology each FEX is managed by both Cisco Nexus 5000 Series devices. As a result, one pair of Cisco Nexus 5500 Series devices can support up to 24 FEXs and 16 FEXs for Layer 2 and Layer 3.

Which statement about RADIUS configuration distribution using Cisco Fabric Services on a Cisco Nexus 7000 Series Switch is true? 642-997 dumps
A. Cisco Fabric Services does not distribute the RADIUS server group configuration or server and global keys.
B. Enabling Cisco Fabric Services causes the existing RADIUS configuration on your Cisco NX-OS device to be immediately distributed.
C. When the RADIUS configuration is being simultaneously changed on more than one device in a Cisco Fabric Services region, the most recent changes will take precedence.
D. Only the Cisco NX-OS device with the lowest IP address in the Cisco Fabric Services region can lock the RADIUS configuration.
Correct Answer: A

CFS does not distribute the RADIUS server group configuration or server and global keys. The keys are unique to the Cisco NX-OS device and are not shared with other Cisco NX- OS devices.

Which three items must be configured in the port profile client in Cisco UCS Manager? (Choose three.)
A. port profile
C. data center
D. folder
E. vCenter IP address
F. VM port group
Correct Answer: BCD

After associating an ESX host to a DVS, you can migrate existing VMs from the vSwitch to the DVS, and you can create VMs to use the DVS instead of the vSwitch. With the hardware-based VN-Link implementation, when a VM uses the DVS, all VM traffic passes through the DVS and ASIC-based switching is performed by the fabric interconnect. In Cisco UCS Manager, DVSes are organized in the following hierarchy:
Folder (optional)
Folder (required)
At the top of the hierarchy is the vCenter, which represents a VMware vCenter instance. Each vCenter contains one or more datacenters, and optionally vCenter folders with which you can organize the datacenters. Each datacenter contains one or more required datacenter folders. Datacenter folders contain the DVSes.

Which statement about SNMP support on Cisco Nexus switches is true?
A. Cisco NX-OS only supports SNMP over IPv4.
B. Cisco NX-OS supports one instance of the SNMP per VDC.
C. SNMP is not VRF-aware.
E. Only users belonging to the network operator RBAC role can assign SNMP groups.
Correct Answer: B

Cisco NX-OS supports one instance of the SNMP per virtual device context (VDC). By default, Cisco NX-OS places you in the default VDC. SNMP supports multiple MIB module instances and maps them to logical network entities. SNMP is also VRF aware. You can configure SNMP to use a particular VRF to reach the SNMP notification host receiver. You can also configure SNMP to filter notifications to an SNMP host receiver based on the VRF where the notification occurred.

Which statement explains why a Cisco UCS 6200 Fabric Interconnect that is configured in end-host mode is beneficial to the unified fabric network?
A. There is support for multiple (power of 2) uplinks.
B. Upstream Layer 2 disjoint networks will remain separated.
C. The 6200 can connect directly via vPC to a Layer 3 aggregation device.
D. STP is not required on the uplink ports from the 6200.
Correct Answer: D

In Cisco Unified Computing System environments, two Ethernet switching modes determine the way that the fabric interconnects behave as switching devices between the servers and the network. In end-host mode, the fabric interconnects appear to the upstream devices as end hosts with multiple links. In end-host mode, the switch does not run Spanning Tree Protocol and avoids loops by following a set of rules for traffic forwarding. In switch mode, the switch runs Spanning Tree Protocol to avoid loops, and broadcast and multicast packets are handled in the traditional way.

Which GLBP load-balancing algorithm ensures that a client is always mapped to the same VMAC address?
A. vmac-weighted
B. dedicated-vmac-mode
C. shortest-path and weighting
D. host-dependent
Correct Answer: D

Host dependent–GLBP uses the MAC address of the host to determine which virtual MAC address to direct the host to use. This algorithm guarantees that a host gets the same virtual MAC address if the number of virtual forwarders does not change.

On a Cisco Nexus 7000 Series router, which statement about HSRP and VRRP is true?
A. When VDCs are in use, only VRRP is supported.
B. HSRP and VRRP both use the same multicast IP address with different port numbers.
C. HSRP has shorter default hold and hello times.
D. The VRRP group IP address can be the same as the router-specific IP address.
Correct Answer: D

VRRP allows for transparent failover at the first-hop IP router by configuring a group of routers to share a virtual IP address. VRRP selects a master router in that group to handle all packets for the virtual IP address. The remaining routers are in standby and take over if the master router fails.

After enabling strong, reversible 128-bit Advanced Encryption Standard password type-6 encryption on a Cisco Nexus 7000, which command would convert existing plain or weakly encrypted passwords to type-6 encrypted passwords?
A. switch# key config-key ascii
B. switch(config)# feature password encryption aes
C. switch# encryption re-encrypt obfuscated
D. switch# encryption decrypt type6
Correct Answer: C

This command converts existing plain or weakly encrypted passwords to type-6 encrypted passwords.

Which statement about implementation of Cisco TrustSec on Cisco Nexus 5546 or 5548 switches are true?
A. Cisco TrustSec support varies depending on Cisco Nexus 5500 Series Switch model.
B. The hardware is not able to support MACsec switch-port-level encryption based on IEEE 802.1AE.
C. The maximum number of RBACL TCAM user configurable entries is 128k.
D. The SGT Exchange Protocol must use the management (mgmt 0) interface.
Correct Answer: B

How is a dynamic vNIC allocated?
A. Dynamic vNICs are assigned to VMs in vCenter.
B. Dynamic vNICs can only be bound to the service profile through an updating template.
C. Dynamic vNICs are bound directly to a service profile.
D. Dynamic vNICs are assigned by binding a port profile to the service profile.
Correct Answer: C

The dynamic vNIC connection policy determines how the connectivity between VMs and dynamic vNICs is configured. This policy is required for Cisco UCS domains that include servers with VIC adapters on which you have installed VMs andconfigured dynamic vNICs. Each dynamic vNIC connection policy includes an Ethernet adapter policy and designates the number of vNICs that can be configured for any server associated with a service profile that includes the policy.
For VM-FEX that has all ports on a blade in standard mode, you need to use the VMware adapter policy.
For VM-FEX that has at least one port on a blade in high-performance mode, use the VMwarePassThrough adapter policy or create a custom policy. If you need to create a custom policy, the resources provisioned need to equal the resource requirements of the guest OS that needs the most resources and for which you will be using high-performance mode.

In the dynamic vNIC creation wizard, why are choices for Protection important?
A. They allow reserve vNICs to be allocated out of the spares pool.
B. They enable hardware-based failover.
C. They select the primary fabric association for dynamic vNICs.
D. They allow dynamic vNICs to be reserved for fabric failover.
Correct Answer: C

Number of Dynamic vNICs ?This is the number of vNICs that will be available for dynamic assignment to VMs. Remember that the VIC has a limit to the number of vNICs that it can support and this is based on the number of uplinks between the IOM and the FI. At least this is the case with the 2104 IOM and the M81KR VIC, which supports ((# IOM Links * 15) ?2)). Also remember that your ESXi server will already have a number of vNICs used for other traffic such as Mgmt, vMotion, storage, etc, and that these count against the limit.
Adapter Policy ?This determines the vNIC adapter config (HW queue config, TCP offload, etc) and you must select VMWarePassThru to support VM-FEX in High Performance mode.
Protection ?This determines the initial placement of the vNICs, either all of them are placed on fabric A or Fabric B or they are alternated between the two fabrics if you just select the “Protected” option. Failover is always enabled on these vNICs and there is no way to disable the protection.

Which statement about RBAC user roles on a Cisco Nexus switch is true?
A. If you belong to multiple roles, you can execute only the commands that are permitted by both roles (logical AND).
B. Access to a command takes priority over being denied access to a command.
C. The predefined roles can only be changed by the network administrator (superuser).
D. The default SAN administrator role restricts configuration to Fibre Channel interfaces.
E. On a Cisco Nexus 7000 Series Switch, roles are shared between VDCs.
Correct Answer: B

If you belong to multiple roles, you can execute a combination of all the commands permitted by these roles. Access to a command takes priority over being denied access to a command. For example, suppose a user has RoleA, which denied access to the configuration commands. However, the users also have RoleB, which has access to the configuration commands. In this case, the users have access to the configuration commands.

Which statement about the implementation of Cisco TrustSec on Cisco Nexus 7000 Series Switches is true?
A. While SGACL enforcement and SGT propagation are supported on the M and F modules, 802.1AE (MACsec) support is available only on the M module.
B. SGT Exchange Protocol is required to propagate the SGTs across F modules that lack hardware support for Cisco TrustSec.
C. AAA authentication and authorization is supported using TACACS or RADIUS to a Cisco Secure Access Control Server.
D. Both Cisco TrustSec and 802.1X can be configured on an F or M module interface.
Correct Answer: A

The M-Series modules on the Nexus 7000 support 802.1AE MACSEC on all ports, including the new M2-series modules. The F2e modules will have this feature enabled in the future. 642-997 dumps
It is important to note that because 802.1AE MACSEC is a link-level encryption, the two MACSEC-enabled endpoints, Nexus 7000 devices in our case, must be directly L2 adjacent. This means we direct fiber connection or one facilitated with optical gear is required. MACSEC has integrity checks for the frames and intermediate devices, like another switch, even at L2, will cause the integrity checks to fail. In most cases, this means metro-Ethernet services or carrier-provided label switched services will not work for a MACSEC connection.

Which two security features are only supported on the Cisco Nexus 7000 Series Switches? (Choose two.)
A. IP source guard
B. traffic storm control
D. DHCP snooping
E. Dynamic ARP Inspection
Correct Answer: BF

A traffic storm occurs when packets flood the LAN, creating excessive traffic and degrading network performance. You can use the traffic storm control feature to prevent disruptions on Layer 2 ports by a broadcast, multicast, or unicast traffic storm on physical interfaces. Traffic storm control (also called traffic suppression) allows you to monitor the levels of the incoming broadcast, multicast, and unicast traffic over a 10-millisecond interval. During this interval, the traffic level,
which is a percentage of the total available bandwidth of the port, is compared with the traffic storm control level that you configured. When the ingress traffic reaches the traffic storm control level that is configured on the port, traffic storm
control drops the traffic until the interval ends.

When a local RBAC user account has the same name as a remote user account on an AAA server, what happens when a user with that name logs into a Cisco Nexus switch?
A. The user roles from the remote AAA user account are applied, not the configured local user roles.
B. All the roles are merged (logical OR).
C. The user roles from the local user account are applied, not the remote AAA user roles.
D. Only the roles that are defined on both accounts are merged (logical AND).
Correct Answer: C

If you have a user account configured on the local Cisco NX-OS device that has the same name as a remote user account on an AAA server, the Cisco NX-OS software applies the user roles for the local user account to the remote user, not the user roles configured on the AAA server.

Which statement is true if password-strength checking is enabled?
A. Short, easy-to-decipher passwords will be rejected.
B. The strength of existing passwords will be checked.
C. Special characters, such as the dollar sign ($) or the percent sign (%), will not be allowed.
D. Passwords become case-sensitive.
Correct Answer: A

If a password is trivial (such as a short, easy-to-decipher password), the cisco NX_OS software will reject your password configuration if password-strength checking is enabled. Be sure to configure a strong password. Passwords are case sensitive.

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