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2021 Feb pass4sure 300-101:

Q51. PPPoE is composed of which two phases? 

A. Active Authentication Phase and PPP Session Phase 

B. Passive Discovery Phase and PPP Session Phase 

C. Active Authorization Phase and PPP Session Phase 

D. Active Discovery Phase and PPP Session Phase 

Answer:

Explanation: 

PPPoE is composed of two main phases:

Active Discovery Phase--In this phase, the PPPoE client locates a PPPoE server, called an access

concentrator. During this phase, a Session ID is assigned and the PPPoE layer is established.

PPP Session Phase--In this phase, PPP options are negotiated and authentication is performed. Once the

link setup is completed, PPPoE functions as a Layer 2 encapsulation method, allowing data to be transferred over the PPP link within PPPoE headers.

Reference: 

http://www.cisco.com/c/en/us/td/docs/security/asa/asa92/configuration/vpn/asa-vpn- cli/vpn-pppoe.html

Topic 3, Layer 3 Technologies 

20. Refer to the exhibit. 

Which one statement is true? 

A. Traffic from the 172.16.0.0/16 network will be blocked by the ACL. 

B. The 10.0.0.0/8 network will not be advertised by Router B because the network statement for the 10.0.0.0/8 network is missing from Router B. 

C. The 10.0.0.0/8 network will not be in the routing table on Router B. 

D. Users on the 10.0.0.0/8 network can successfully ping users on the 192.168.5.0/24 network, but users on the 192.168.5.0/24 cannot successfully ping users on the 10.0.0.0/8 network. 

E. Router B will not advertise the 10.0.0.0/8 network because it is blocked by the ACL. 

Answer:

Explanation: 

You can filter what individual routes are sent (out) or received (in) to any interface within your EIGRP

configuration.

One example is noted above. If you filter outbound, the next neighbor(s) will not know about anything

except the 172.16.0.0/16 route and therefore won't send it to anyone else downstream. If you filter inbound, YOU won't know about the route and therefore won't send it to anyone else downstream.


Q52. Which two functions are completely independent when implementing NAT64 over NAT-PT? (Choose two.) 

A. DNS 

B. NAT 

C. port redirection 

D. stateless translation 

E. session handling 

Answer: A,B 

Explanation: 

Network Address Translation IPv6 to IPv4, or NAT64, technology facilitates communication

between IPv6-only and IPv4-only hosts and networks (whether in a transit, an access, or an edge

network). This solution allows both enterprises and ISPs to accelerate IPv6 adoption while simultaneously

handling IPv4 address depletion. The DNS64 and NAT64 functions are completely separated, which is

essential to the superiority of NAT64 over NAT-PT. Reference: http:// www.cisco.com/c/en/us/products/

collateral/ios-nx-os-software/enterprise-ipv6- solution/white_paper_c11-676278.html


Q53. Which traffic characteristic is the reason that UDP traffic that carries voice and video is assigned to the queue only on a link that is at least 768 kbps? 

A. typically is not fragmented 

B. typically is fragmented 

C. causes windowing 

D. causes excessive delays for video traffic 

Answer:

Explanation: 


Q54. Refer to the following configuration command. 

router (config-line)# ntp master 10 

Which statement about this command is true? 

A. The router acts as an authoritative NTP clock and allows only 10 NTP client connections. 

B. The router acts as an authoritative NTP clock at stratum 10. 

C. The router acts as an authoritative NTP clock with a priority number of 10. 

D. The router acts as an authoritative NTP clock for 10 minutes only. 

Answer:

Explanation: 


Q55. A network engineer is investigating the cause of a service disruption on a network segment and executes the debug condition interface fastethernet f0/0 command. In which situation is the debugging output generated? 

A. when packets on the interface are received and the interface is operational 

B. when packets on the interface are received and logging buffered is enabled 

C. when packets on the interface are received and forwarded to a configured syslog server 

D. when packets on the interface are received and the interface is shut down 

Answer:

Explanation: 


Replace exam collections 300-101:

Q56. Scenario: 

You have been asked to evaluate an OSPF network setup in a test lab and to answer questions a customer has about its operation. The customer has disabled your access to the show running-config command. 

How many times was SPF algorithm executed on R4 for Area 1? 

A. 1 

B. 5 

C. 9 

D. 20 

E. 54 

F. 224 

Answer:

Explanation: 


Q57. When using SNMPv3 with NoAuthNoPriv, which string is matched for authentication? 

A. username 

B. password 

C. community-string 

D. encryption-key 

Answer:

Explanation: 

The following security models exist: SNMPv1, SNMPv2, SNMPv3. The following security

levels exits: "noAuthNoPriv" (no authentiation and no encryption noauth keyword in CLI),

"AuthNoPriv" (messages are authenticated but not encrypted auth keyword in CLI), "AuthPriv" (messages

are authenticated and encrypted priv keyword in CLI). SNMPv1 and SNMPv2 models only support the

"noAuthNoPriv" model since they use plain community string to match the incoming packets. The SNMPv3

implementations could be configured to use either of the models on per-group basis (in case if

"noAuthNoPriv" is configured, username serves as a replacement for community string). Reference: http://

blog.ine.com/2008/07/19/snmpv3-tutorial/


Q58. A router receives a routing advertisement for the same prefix and subnet from four different routing protocols. Which advertisement is installed in the routing table? 

A. RIP 

B. OSPF 

C. iBGP 

D. EIGRP 

Answer:

Explanation: 


Q59. Which IPv6 address type is seen as the next-hop address in the output of the show ipv6 rip RIPng database command? 

A. link-local 

B. global 

C. site-local 

D. anycast 

E. multicast 

Answer:

Explanation: 


Q60. Which three benefits does the Cisco Easy Virtual Network provide to an enterprise network? (Choose three.) 

A. simplified Layer 3 network virtualization 

B. improved shared services support 

C. enhanced management, troubleshooting, and usability 

D. reduced configuration and deployment time for dot1q trunking 

E. increased network performance and throughput 

F. decreased BGP neighbor configurations 

Answer: A,B,C 

Explanation: