Facts about passleader 400 101

The article at Testaimer.com going over http://www.testaimer.com/400-101-test is very comprehensive.


Drag and drop the StackWise stack master election rule on the left into the correct priority order on the right. 


Q322. Which two statements about LDP advertising when Explicit Null is in effect are true? (Choose two.) 

A. Penultimate hop popping is disabled. 

B. Penultimate hop popping is enabled. 

C. It is the default behavior for LDP. 

D. It is used for the advertisement of static routes. 

E. It is used for the advertisement of connected routes. 

Answer: A,E 

Q323. Which three options are three of the default EIGRP administrative distances? (Choose three.) 

A. Internal, 90 

B. External, 170 

C. Summary, 5 

D. Outside Local, 100 

E. Inside Local, 180 

F. Inside Global, 1 

Answer: A,B,C 


The following table lists the default administrative distances for various routing protocols used on Cisco routers. 

Routing Protocol 

Administrative distance 

Directly connected interface 

Static route out an interface 

Static route to next-hop address 

DMNR - Dynamic Mobile Network Routing 

EIGRP summary route 

External BGP 


Internal EIGRP 








Routing Information Protocol (RIP) 


Exterior Gateway Protocol (EGP) 


On Demand Routing (ODR) 


External EIGRP 


Internal BGP 


Floating Static Route (ex. DHCP-learned) 




Reference: http://en.wikipedia.org/wiki/Administrative_distance 

Q324. Refer to the exhibit. 

R1 is configured as shown. R1 is able to establish a neighbor adjacency only with R2. Which addition must you make to the R1 configuration to allow it to establish an adjacency with R3? 

A. interface gigabitethernet 0/1 

ip address 

ip ospf network point-to-point 

B. interface gigabitethernet 0/1 

ip address 

ip ospf 1 area 0 

C. router ospf 1 

network area 1 

D. router ospf 1 

area 0 stub 



To enable interfaces and networks with OSPF, the networks need to be specified in the network statement. In the configuration shown, only has been enabled, we are missing the network connecting to R3 ( 

Q325. What are the minimal configuration steps that are required to configure EIGRP HMAC-SHA2 authentication? 

A. classic router mode, interface XX, authentication mode hmac-sha-256 <password> 

B. named router mode, address-family statement, authentication mode hmac-sha-256 <password> 

C. named router mode, address-family statement, af-interface default, authentication mode hmac-sha-256 <password> 

D. named router mode, address-family statement, authentication mode hmac-sha-256 <password> 



The example below shows how to configure EIGRP HMAC-SHA2 on Cisco router: 

Device(config)# router eigrp name1 

Device(config-router)# address-family ipv4 autonomous-system 45000 

Device(config-router-af)# af-interface ethernet 0/0 

Device(config-router-af-interface)# authentication mode hmac-sha-256 0 password1 

Device(config-router-af-interface)# end 

Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-sy/ire-15-sy-book/ire-sha-256.html 

Q326. Refer to the exhibit. 

Which statement describes what the authoritative flag indicates? 

A. Authentication was used for the mapping. 

B. R1 learned about the NHRP mapping from a registration request. 

C. Duplicate mapping in the NHRP cache is prevented. 

D. The registration request had the same flag set. 



Show NHRP: Examples 

The following is sample output from the show ip nhrp command: 

Router# show ip nhrp, tunnel 100 created 0:00:43 expire 1:59:16 

TypE. dynamic Flags: authoritative 

NBMA address: 10.1111.1111.1111.1111.1111.1111.1111.1111.1111.11, Tunnel0 created 0:10:03 expire 1:49:56 

TypE. static Flags: authoritative 

The fields in the sample display are as follows: 


authoritative—Indicates that the NHRP information was obtained from the Next Hop Server or router that maintains the NBMA-to-IP address mapping for a particular destination. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_4/ip_addr/configuration/guide/hadnhrp.html 

Q327. What is the VLAN ID range of VLANs that are eligible for pruning? 

A. 2 through 1001 

B. 1 through 1005 

C. 1 through 4096 

D. 2 through 1005 


Q328. External EIGRP route exchange on routers R1 and R2 was failing because the routers had duplicate router IDs. You changed the eigrp router-id command on R1, but the problem persists. Which additional action must you take to enable the routers to exchange routes? 

A. Change the corresponding loopback address. 

B. Change the router ID on R2. 

C. Reset the EIGRP neighbor relationship. 

D. Clear the EIGRP process. 


Q329. Refer to the exhibit. 

Which statement about this IP SLA is true? 

A. The SLA must also have a schedule configured before it will start. 

B. The TTL of the SLA packets is 10. 

C. The SLA has a timeout of 3.6 seconds. 

D. The SLA has a lifetime of 5 seconds. 



When you configure an IP SLAs operation, you must schedule the operation to begin capturing statistics and collecting error information. You can schedule an operation to start immediately or to start at a certain month, day, and hour. You can use the pending option to set the operation to start at a later time. The pending option is an internal state of the operation that is visible through SNMP. The pending state is also used when an operation is a reaction (threshold) operation waiting to be triggered. You can schedule a single IP SLAs operation or a group of operations at one time. We can see in this output that the IP SLA is still in a pending trigger state. 

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/44sg/configuration/guide/Wrapper-44SG/swipsla.html 

Q330. Which IP SLA operation type uses IP to measure the round-trip time between a router and a device? 


B. ICMP Echo 

C. ICMP Path Jitter 

D. UDP Jitter for VoIP