Cisco Cisco Certifications 210-250 Questions & Answers

• Question 381:

  Which one of the following options is most used by multilayer switches to allow for wire-speed switching?

  A. label switching

  B. high-speed CPU and huge amount of memory

  C. specialized ASIC hardware

  D. distributed switching using multiple MAC address table

  Correct Answer: C

• Question 382:

  Which two of the following statements are true regarding the CAM and TCAM tables? (Choose two.)

  A. A CAM table is primarily used to make Layer 2 forwarding decisions.

  B. A CAM table contains the MAC-to-IP address mappings.

  C. A TCAM table stores ACL, QoS, and other information that is generally associated with upper-layer processing.

  D. TCAM is a specialized CAM that enables a Layer 2 switch to perform wire speed switching.

  E. The CAM and TCAM tables are populated using a routing protocol.

  Correct Answer: AC

• Question 383:

  Which purpose of command and control for network aware malware is true?

  A. It helps the malware to profile the host

  B. It takes over the user account

  C. It contacts a remote server for command and updates

  D. It controls and down services on the infected host

  Correct Answer: C

• Question 384:

  Which one of the following options is the routing protocol that is usually used between the major ISPs?

  A. BGP

  B. OSPF

  C. IS-IS

  D. EIGRP

  E. OSPF or IS-IS

  Correct Answer: A

• Question 385:

  Which option is an advantage to using network-based anti-virus versus host-based anti- virus?

  A. Network-based has the ability to protect unmanaged devices and unsupported operating systems.

  B. There are no advantages compared to host-based antivirus.

  C. Host-based antivirus does not have the ability to collect newly created signatures.

  D. Network-based can protect against infection from malicious files at rest.

  Correct Answer: D

• Question 386:

  Which one of the following statements best describes the purpose of a default route?

  A. A default route sets the preferred path for multicast packets.

  B. A default route is an optional entry that is used when no explicit path to a destination is found in the routing table.

  C. A default route will flood the packet out of all connected ports.

  D. A default route is just a placeholder in the route table until a new route is found.

  Correct Answer: B

• Question 387:

  Which one of the following options best describes the function of the root bridge in a spanning tree protocol?

  A. the farthest reachable point

  B. a reference point, the logical center

  C. the device that facilitates the blocking or discarding port

  D. a redundant switch

  Correct Answer: B

• Question 388:

  When using the 802.1Q frame tagging protocol, how much additional overhead does the protocol add to the frame structure?

  A. 8 bytes

  B. 4 bytes

  C. 2 bytes

  D. 16 bytes

  E. no impact to frame overhead

  Correct Answer: B

• Question 389:

  Which one of the following statements best describes how 802.1q incorporates VLAN information onto an Ethernet frame?

  A. It uses a special EtherType to identify the Ethernet payload that contains the 802.1Q tag.

  B. It inserts a 4-byte header after the source MAC address in the original Ethernet frame, which carries the VLAN information.

  C. The VLAN information is identified in the Ethernet header Type/Length field.

  D. It encapsulates the entire Ethernet frame and adds a 4-byte header before the destination MAC address which carries the VLAN information.

  Correct Answer: B

• Question 390:

  Which one of the following best describes how VLANs improve network performance?

  A. VLANs separate a large broadcast domain into smaller broadcast domains.

  B. VLANs enable rate limiting of the broadcast traffic.

  C. VLANs create one large virtual switch out of many physical switches.

  D. VLANs place each switch port into its own collision domain.

  Correct Answer: A