Exambible provides using the top top quality of IT products that are designed through our certified professors. All of them have vast expertise and a wealth of information in compiling the actual simulated tests for Exambible. The actual team of the authorities are devoted to revising as well as verifying and exam dumps upon regular basis. They make sure that offer essentially the most up-to-date Cisco certification practice questions and answers. The idea wont trigger any inconvenience to suit your needs to make for the true test. We all promise youll gain greatest knowledge with minimum power.
Q501. Refer to the exhibit.
Which two statements about this egress queue are true? (Choose two.)
A. The queue 3 buffer is allocated 20 percent, its drop threshold is 100 percent, and it is guaranteed 400 percent of memory.
B. The queue 1 buffer is allocated 30 percent, its drop threshold is 25 percent, and it is guaranteed 100 percent of memory.
C. The queue 1 buffer is allocated 30 percent, its drop threshold is 100 percent, and it is guaranteed 150 percent of memory.
D. The queue 2 buffer is allocated 30 percent, its drop threshold is 200 percent, and it can use at maximum 400 percent of memory.
E. The queue 3 buffer is allocated 30 percent, its drop threshold is 100 percent, and it can use at maximum 400 percent of memory.
Q502. Which two options are disadvantages of a commingled dual-tier WAN rate-based Ethernet circuit? (Choose two.)
A. It requires the maintenance of separate chassis.
B. It has limited scalability.
C. It requires additional CPU resources at the subscriber end.
D. It is more difficult to secure.
E. It can increase the likelihood of packet drops.
Q503. DRAG DROP
Drag and drop the VLAN number on the left to the corresponding default VLAN name on the right.
Q504. DRAG DROP
Drag each IPv6 extension header on the left to its corresponding description on the right.
Q505. Refer to the exhibit.
Which technology does the use of bi-directional BPDUs on all ports in the topology support?
C. Bridge Assurance
D. Loop Guard
E. Root Guard
Spanning Tree Bridge Assurance
. Turns STP into a bidirectional protocol
. Ensures spanning tree fails “closed” rather than “open”
. If port type is “network” send BPDU regardless of state
. If network port stops receiving BPDU it’s put in BA-inconsistent state
Bridge Assurance (BA) can help protect against bridging loops where a port becomes designated because it has stopped receiving BPDUs. This is similar to the function of loop guard.
Q506. Which three statements are true about PPP CHAP authentication? (Choose three.)
A. PPP encapsulation must be enabled globally.
B. The LCP phase must be complete and in closed state.
C. The hostname used by a router for CHAP authentication cannot be changed.
D. PPP encapsulation must be enabled on the interface.
E. The LCP phase must be complete and in open state.
F. By default, the router uses its hostname to identify itself to the peer.
Point-to-Point Protocol (PPP) authentication issues are one of the most common causes for dialup link failures. This document provides some troubleshooting procedures for PPP authentication issues.
. Enable PPP encapsulation
. The PPP authentication phase does not begin until the Link Control Protocol (LCP) phase is complete and is in the open state. If debug ppp negotiation does not indicate that LCP is open, troubleshoot this issue before proceeding.
Note. By default, the router uses its hostname to identify itself to the peer. However, this CHAP username can be changed through the ppp chap hostname command.
Q507. Which two options are benefits of EIGRP OTP? (Choose two.)
A. It allows EIGRP routers to peer across a service provider without the service provider involvement.
B. It allows the customer EIGRP domain to remain contiguous.
C. It requires only minimal support from the service provider.
D. It allows EIGRP neighbors to be discovered dynamically.
E. It fully supports multicast traffic.
F. It allows the administrator to use different autonomous system numbers per EIGRP domain.
EIGRP Over the Top (OTP) allows EIGRP routers to peer across a service provider infrastructure without the SP’s involvement. In fact with OTP, the provider won’t see customer routes at all. EIGRP OTP acts as a provider-independent overlay that transports customer data between the customer’s routers. To the customer, the EIGRP domain is contiguous. A customer’s EIGRP router sits at the edge of the provider cloud, and peers with another EIGRP router a different location across the cloud. Learned routes feature a next hop of the customer router — not the provider. Good news for service providers is that customers can deploy EIGRP OTP with their involvement
Q508. While troubleshooting an issue for a remote user, you must capture the communication between the user's computer and a server at your location. The traffic passes through a Cisco IOS-XE capable switch. Which statement about obtaining the capture is true?
A. The Embedded Packet Capture application in the IOS-XE Software can capture the packets, but there is a performance impact.
B. The Embedded Packet Capture application in the IOS-XE Software can capture the packets without impacting performance.
C. The Mini Protocol Analyzer embedded in the IOS-XE Software can capture the packets without impacting performance.
D. The Mini Protocol Analyzer embedded in the IOS-XE Software can be used to capture the packets, but there is a performance impact.
E. Wireshark can capture packets through a SPAN port, but there is a performance impact.
Q509. Which two statements describe characteristics of HDLC on Cisco routers? (Choose two.)
A. It supports multiple Layer 3 protocols.
B. It supports multiplexing.
C. It supports only synchronous interfaces.
D. It supports authentication.
Cisco High-Level Data Link Controller (HDLC) is the Cisco proprietary protocol for sending data over synchronous serial links using HDLC. Cisco HDLC also provides a simple control protocol called Serial Line Address Resolution Protocol (SLARP) to maintain serial link keepalives. Cisco HDLC is the default for data encapsulation at Layer 2 (data link) of the Open System Interconnection (OSI) stack for efficient packet delineation and error control. The absence of a protocol type field in the HDLC header posed a problem for links that carried traffic from more than one Layer 3 protocol. Cisco, therefore, added an extra Type field to the HDLC header, creating a Cisco-specific version of HDLC. Cisco routers can support multiple network layer protocols on the same HDLC link. For example an HDLC link between two Cisco routers can forward both IPv4 and IPv6 packets because the Type field can identify which type of packet is carried inside each HDLC frame.
Q510. Which three steps are necessary to enable SSH? (Choose three.)
A. generating an RSA or DSA cryptographic key
B. configuring the version of SSH
C. configuring a domain name
D. configuring VTY lines for use with SSH
E. configuring the port for SSH to listen for connections
F. generating an AES or SHA cryptographic key
Here are the steps:
1. Configure a hostname for the router using these commands.
Enter configuration commands, one per line. End with CNTL/Z.
yourname (config)#hostname LabRouter
2. Configure a domain name with the ip domain-name command followed by whatever you would like your domain name to be. I used CiscoLab.com.
LabRouter(config)#ip domain-name CiscoLab.com
3. We generate a certificate that will be used to encrypt the SSH packets using the crypto key generate rsa command.
Take note of the message that is displayed right after we enter this command. “The name for the keys will bE. LabRouter.CiscoLab.com” — it combines the hostname of the router along with the domain name we configured to get the name of the encryption key generated; this is why it was important for us to, first of all, configure a hostname then a domain name before we generated the keys.
Notice also that it asks us to choose a size of modulus for the key we’re about to generate.
The higher the modulus, the stronger the encryption of the key. For our example, we’ll use a modulus of 1024.
To know more about the 400-101, click here.