Questions - Need Help to get Answers

[EIT_Network]

Hi Friends,

I am working and preparing for a 101 certification and recently gone through a ExamStudio practice exam. Must to say that Dummy exam was even full of tricky questions. I have few queries where i am either confused / not sure or NOT knowing the correct answers and seeking all your help to get the correct answer for those questions. Here are they :-

Question-1 : Users report slowness in accessing their application. The Administartor noticed that the graph trend of “Other Memory Used” in the BIG-IP Device ins increasing.

What Could cause This :

a)      Memory leak

b)      Memory Shortage

c)       Memory Overload

d)      Memory Breach

________________________________

Question-2 : What tool should a BIG-IP Device used to log actions performed by administrative users on an external server.

a)      SNMP

b)      Netflow

c)       RELP

d)      Syslog

___________________________________

Question-3:  A host with Multiple routes including Default Route determines that a packet is destined for a remote network.

How would the host pass the traffic.

a)      The host would drop the traffic.

b)      The host would pass the traffic to loopback interface.

c)       The host would use the route with longest match.

d)      The host would only check its ARP table and pass the traffic to destination.

___________________________________

Question-4 :  A Known issue has been identified in the BIG-IP System, A Software Fix is available to the Public, What is this Software Fix called.

a)      Software Upgrade

b)      HotFix

c)       Engineering Hotfix

d)      Update

_____________________________________

Question-5: The BIG-IP Admin verifies the Service Check date and finds that it has passed.

What must be done prior to upgrading the BIG-IP?

a)      Force Load mcpd

b)      Re-activate the current license.

c)       Modify the License file date to match the current date.

d)      Open the F5 Support case to have a new license key issued.

__________________________________________

Question-6: An Administrator added a https health monitor to pool member-1. Node-1 is the node used by Member-1. Tcpdump shows that the https monitor is receiving the correct response. But Member-1 is still offline. All other settings are on default.

Jan 11 16:04:40 BIGP-IP-01 notice mcpd(4827): 01070638:5: Pool /Common/Pool1 member/Common/Member1:443 monitor status node down

a)      Add a second monitor to node1

b)      Add a second monitor to Member1

c)       Remove the existing monitor for member1

d)      Remove the existing monitor for node1

__________________________________________

Question-7 : The owner of a Web Server behind a BIG-IP device report that they are not receiving HTTP traffic. The BIG-IP admin is able to ping the server successfully.

Which troubleshooting steps should the admin take next ?

a)      Change the IP on the Web Server.

b)      Verify ARP on the BIG-IP Device.

c)        Verify ARP on the Connected Switches.

d)      Collect a packet Capture on the Web Server.

______________________________________________ 

Question-8 : A load balancing application on the BIG-IP LTM  fails to deliver the pool members’s data content to the client. The Virtual Server and Pool members are located in the same segment network and use the same service port. The pool member only have a static route to the default network using the ISP’s router as gateway.

The Virtual Server configures the following parameter.

Which configuration must a BIG-IP admin use for the load balancing to succeed.

a)      Address translation : Disabled

Port translation: Enabled

Source Address translation: Disabled.

b)      Address translation : Disabled

Port translation : Disabled

Source Address translation : Enabled.

c)       Address translation : Enabled

Port translation : Enabled

Source Address translation : Disabled.

d)      Address translation : Enabled

Port translation : Disabled

Source Address translation : Enabled.

__________________________________________________

Question-9 : Several users reports that an HTTP service delivered by a BIG-IP and located on 50.206.82.160 is not working properly.

Which command should be used to verify that the service is working properly.

a)      nc 50.206.82.160

b)      ping 50.206.82.160

c)       curl 50.206.82.160

d)      nmap 50.206.82.160

__________________________________________________

Question-10: Server S-4 issues a broadcast that fails to arrive at Server S-2

Which device in the given topology forms the boundary of the broadcast domain that Server S-4 resides in .

     Server-4 --> Switch-2 --> (Ethernet-2) Router-1 (Ethernet-1) -->Switch-1 --> Server-2

(A Firewall is also there and connected to Ethernet-0 of Router-1)

a)      Server-4

b)      Firewall-1

c)       Switch-1

d)      Router-1

____________________________________________________________________________

Question-11 :   A host sends out an ARP request for the first time.

What is the destination address of the frame.

a)      MAC address of the default gateway.

b)      MAC address of the HOST interface.

c)       MAC address is in the form of broadcast.

d)      MAC address is in the form of multicast.

_________________________________________________________

Question-12: A BIG-IP Virtual Edition (VE) platform need to be upgraded to a new TMOS code version. This VE was initially deployed using the VE image template type.

What is the Standard method to upgrade this VE.

a)      Install the new OVA file to an empty boot volume and boot into it.

b)      Deploy a new virtual Disk and apply the SCF backup.

c)       Deploy a new virtual machine and delete the Old one.

d)      Install the new ISO File to an inactive boot volume and boot into it.  

__________________________________________________

Question-13: A load balancer traceroute command response with only a single entry containing its default gateway IP address and a “Destination Net Unreachable” message. The IP address used in the traceroute command is Valid.

What should the admin verify to troubleshoot the issue?

a)      The Load balancer’s Interface IP address and subnet mask.

b)      The Load balancer’s routing configuration.

c)       The Default Gateway’s routing configuration.

d)      The Default gateway’s Interface IP address and subnet mask.

Please help

Rgds

***

[EIT_Network]

Hi All,

As no reply ad answer from anyone, I again tried and worked on the answers.

here they are:

Question-1 : Users report slowness in accessing their application. The Administartor noticed that the graph trend of “Other Memory Used” in the BIG-IP Device ins increasing.

What Could cause This :

a)     Memory leak

b)     Memory Shortage

c)      Memory Overload

d)     Memory Breach

Correct : c)      Memory Overload

________________________________

Question-2 : What tool should a BIG-IP Device used to log actions performed by administrative users on an external server.

a)     SNMP

b)     Netflow

c)      RELP

d)     Syslog

Correct : d)     Syslog

___________________________________

Question-3: A host with Multiple routes including Default Route determines that a packet is destined for a remote network.

How would the host pass the traffic.

a)     The host would drop the traffic.

b)     The host would pass the traffic to loopback interface.

c)      The host would use the route with longest match.

d)     The host would only check its ARP table and pass the traffic to destination.

Correct : c)      The host would use the route with longest match.

___________________________________

Question-4 : A Known issue has been identified in the BIG-IP System, A Software Fix is available to the Public, What is this Software Fix called.

a)     Software Upgrade

b)     HotFix

c)      Engineering Hotfix

d)     Update

Correct : b)     HotFix

_____________________________________

Question-5: The BIG-IP Admin verifies the Service Check date and finds that it has passed.

What must be done prior to upgrading the BIG-IP?

a)     Force Load mcpd

b)     Re-activate the current license.

c)      Modify the License file date to match the current date.

d)     Open the F5 Support case to have a new license key issued.

Correct : b)     Re-activate the current license.

__________________________________________

Question-6: An Administrator added a https health monitor to pool member-1. Node-1 is the node used by Member-1. Tcpdump shows that the https monitor is receiving the correct response. But Member-1 is still offline. All other settings are on default.

Jan 11 16:04:40 BIGP-IP-01 notice mcpd(4827): 01070638:5: Pool /Common/Pool1 member/Common/Member1:443 monitor status node down

a)     Add a second monitor to node1

b)     Add a second monitor to Member1

c)      Remove the existing monitor for member1

d)     Remove the existing monitor for node1

Correct : d)     Remove the existing monitor for node1

__________________________________________

Question-7 : The owner of a Web Server behind a BIG-IP device report that they are not receiving HTTP traffic. The BIG-IP admin is able to ping the server successfully.

Which troubleshooting steps should the admin take next ?

a)     Change the IP on the Web Server.

b)     Verify ARP on the BIG-IP Device.

c)       Verify ARP on the Connected Switches.

d)     Collect a packet Capture on the Web Server.

Correct : d)     Collect a packet Capture on the Web Server.

______________________________________________ 

Question-8 : A load balancing application on the BIG-IP LTM fails to deliver the pool members’s data content to the client. The Virtual Server and Pool members are located in the same segment network and use the same service port. The pool member only have a static route to the default network using the ISP’s router as gateway.

The Virtual Server configures the following parameter.

Which configuration must a BIG-IP admin use for the load balancing to succeed.

a)     Address translation : Disabled

Port translation: Enabled

Source Address translation: Disabled.

b)     Address translation : Disabled

Port translation : Disabled

Source Address translation : Enabled.

c)      Address translation : Enabled

Port translation : Enabled

Source Address translation : Disabled.

d)     Address translation : Enabled

Port translation : Disabled

Source Address translation : Enabled.

Correct : b)     Address translation : Disabled

Port translation : Disabled

Source Address translation : Enabled.

__________________________________________________

Question-9 : Several users reports that an HTTP service delivered by a BIG-IP and located on 50.206.82.160 is not working properly.

Which command should be used to verify that the service is working properly.

a)     nc 50.206.82.160

b)     ping 50.206.82.160

c)      curl 50.206.82.160

d)     nmap 50.206.82.160

Correct : c)      curl 50.206.82.160

__________________________________________________

Question-10: Server S-4 issues a broadcast that fails to arrive at Server S-2

Which device in the given topology forms the boundary of the broadcast domain that Server S-4 resides in .

     Server-4 --> Switch-2 --> (Ethernet-2) Router-1 (Ethernet-1) -->Switch-1 --> Server-2

(A Firewall is also there and connected to Ethernet-0 of Router-1)

a)     Server-4

b)     Firewall-1

c)      Switch-1

d)     Router-1

Correct : d) Router-1

____________________________________________________________________________

Question-11 :  A host sends out an ARP request for the first time.

What is the destination address of the frame.

a)     MAC address of the default gateway.

b)     MAC address of the HOST interface.

c)      MAC address is in the form of broadcast.

d)     MAC address is in the form of multicast.

Correct : c)      MAC address is in the form of broadcast.

_________________________________________________________

Question-12: A BIG-IP Virtual Edition (VE) platform need to be upgraded to a new TMOS code version. This VE was initially deployed using the VE image template type.

What is the Standard method to upgrade this VE.

a)     Install the new OVA file to an empty boot volume and boot into it.

b)     Deploy a new virtual Disk and apply the SCF backup.

c)      Deploy a new virtual machine and delete the Old one.

d)     Install the new ISO File to an inactive boot volume and boot into it. 

Correct : d)     Install the new ISO File to an inactive boot volume and boot into it. 

__________________________________________________

 Question-13: A load balancer traceroute command response with only a single entry containing its default gateway IP address and a “Destination Net Unreachable” message. The IP address used in the traceroute command is Valid.

What should the admin verify to troubleshoot the issue?

a)     The Load balancer’s Interface IP address and subnet mask.

b)     The Load balancer’s routing configuration.

c)      The Default Gateway’s routing configuration.

d)     The Default gateway’s Interface IP address and subnet mask.

Correct : c)      The Default Gateway’s routing configuration.

Rgds

***

[Karthick1]

Question-8

i hope correct ans is d),

for example : let consider

client ip as : 2.2.2.2 ,

VIP as 10.10.10.10 ,

pool member 10.10.10.200

self ip 10.10.10.20

if you disable Address translation and SNAT- AUTO connection will be as below :

client side connection :

2.2.2.2 ---> 10.10.10.10

server side :

10.10.10.20 ---> 10.10.10.10 ( address translation doesn't happen )

if you enable Address translation and SNAT- AUTO connection will be as below :

client side connection :

2.2.2.2 ---> 10.10.10.10

server side :

10.10.10.20 ---> 10.10.10.200

d)     Address translation : Enabled

Port translation : Disabled

Source Address translation : Enabled.

[zakaria]

Hello,

it is mentionned in the question that the VS has pool members(more than one), i assume in that case that destination  (Address translation : Enabled NAT) in mandatory to do load balancing even if VS and pool members are in same network.

i Think D is correct answer.

Regards

[Karthick1]

I hope answer is A).

curl is used to transfer the data to or from the server, also you can specify the curl -v -k GET telnet://x.x.x.x:port to check the services but the simplest way in mentioned option is nc.

using nc /telnet you can check the services directly

Question-9 : Several users reports that an HTTP service delivered by a BIG-IP and located on 50.206.82.160 is not working properly.

Which command should be used to verify that the service is working properly.

a)     nc 50.206.82.160

b)     ping 50.206.82.160

c)      curl 50.206.82.160

d)     nmap 50.206.82.160

[zakaria]

i agree lees intuitive but tested with curl and works just fine: curl IP, i guess curl defaults to port 80 if unmentionned.

the short output is html response code.

wish that helped.

Regards

[arsenal14]

 do u have answers to other questions u can share?