F5 301b 問題集

質問 1：
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Refer to the exhibits.
Users are able to access the application when connecting to the virtual server but are unsuccessful when connecting directly to the application servers. The LTM Specialist wants to allow direct access to the application servers.
Which configuration change resolves this problem?
A. Configure an IP Forwarding virtual server on the LTM device.
B. Disable address translation on the virtual server.
C. Enable port 443 on the virtual server.
D. Configure a route to the web server subnet on the network router.
E. Configure a SNAT pool on the LTM device.
正解：A

質問 2：
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Refer to the exhibit.
An LTM Specialist has uploaded a qkview to F5 iHealth.
Within the GUI, what is the correct procedure to comply with the recommendation shown in the exhibit?
A. Obtain product version image from release.f5.com.
Overwrite existing image with new product version image.
Select product version image and click Install.
Select the available disk and volume set name.
B. Obtain product version image from downloads.f5.com.
Import product version image.
Install image onto BIG-IP platform.
Select product version image and click Install.
Select the available disk and volume set name.
C. Log a call requesting the product version image via websupport.f5.com
Import product version image.
Install image onto BIG-IP platform.
Select product version image and click Install.
Select the available disk and volume set name.
D. Obtain product version image from images.f5.com.
Overwrite existing image with new product version image.
Select product version image and click Install.
Select the available disk and volume set name.
正解：B

質問 3：
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Refer to the exhibit.
Which step should an LTM Specialist take to utilize AVR?
A. provision AVR
B. install the AVR add-on
C. license the device for AVR
D. reboot the device
正解：A

質問 4：
Given a tcpdump on an LTM device from both sides of a connection on the External and Internal VLANs, how should an LTM Specialist determine if SNAT is enabled for a particular pool?
A. by checking to see if the Destination IP is carried through from the External Vlan to the Internal Vlan
B. by checking to see if the Destination port is carried through from the External Vlan to the Internal Vlan
C. by checking to see if the Source IP is carried through from the External Vlan to the Internal Vlan
D. by checking to see if the Source port is carried through from the External Vlan to the Internal Vlan
正解：C

質問 5：
The LTM Specialist is writing a custom HTTP monitor for a web application and has viewed the content by accessing the site directly via their browser. The monitor continually fails. The monitor configuration is:
ltm monitor http /Common/exampleComMonitor {
defaults-from /Common/http
destination *:*
interval 5
recv "Recent Searches"
send "GET /app/feed/current\?uid=20145 HTTP/1.1\\r\\nHost:
www.example.com\\r\\nAccept-EncodinG.gzip, deflate\\r\\nConnection: close\\r\\n\\r\\n"
time-until-up 0
timeout 16
}
A trace shows the following request and response:
Request:
GET /app/feed/current?uid=20145 HTTP/1.1
Host www.example.com
Accept-Encoding gzip, deflate
Connection: close
Response: HTTP/1.1 302 Moved Temporarily Date Wed, 17 Oct 2012 18:45:52 GMT Server Apache Location https://example.com/login.jsp Content-Encoding gzip Content-Type text/html;charset=UTF-8 Set-CookiE.JSESSIONID=261EFFBDA8EC3036FBCC22D991AC6835;
Path=/app/feed/current?uid=20145
What is the problem?
A. The request does NOT include any cookies and the application is expecting a session cookie.
B. The request includes an Accept-Encoding so the server is responding with a gzipped result and LTM monitors CANNOT handle gzipped responses.
C. The HTTP monitor does NOT support monitoring jsp pages.
D. The request does NOT include a User-Agent header.
正解：A

質問 6：
An IT administrator wants to log which server is being load balanced to by a user with IP address 10.10.10.25.
Which iRule should the LTM Specialist use to fulfill the request?
A. when CLIENT_ACCEPTED {
if { [IP::addr [clientside [IP::remote_addr]] equals 10.10.10.25]} {
log local0. "client 10.10.10.25 connected to pool member [IP::addr [LB::server addr]]" }
}
B. when SERVER_CONNECTED {
if { [IP::addr [IP::remote_addr]] equals 10.10.10.25]} {
log local0. "client 10.10.10.25 connected to pool member [IP::addr [LB::server addr]]" }
}
C. when SERVER_CONNECTED {
if { [IP::addr [clientside [IP::remote_addr]] equals 10.10.10.25]} {
log local0. "client 10.10.10.25 connected to pool member [IP::addr [LB::server addr]]" }
}
D. when CLIENT_ACCEPTED {
if { [IP::addr [IP::remote_addr] equals 10.10.10.25]} {
log local0. "client 10.10.10.25 connected to pool member [IP::addr [LB::server addr]]" }
}
正解：C

質問 7：
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-- Exhibit --
Refer to the exhibit.
Based on the output of the tmsh interface show command, what is the issue?
A. Flow Control is NOT configured on the management interface.
B. There are too many drops on inbound traffic on interface 1.1.
C. There is a duplex mismatch on the management interface.
D. Interfaces 2.1 and 2.2 are defective and need replacement.
正解：C

質問 8：
While investigating the cause of a device failover, an LTM Specialist discovers the following events in /var/log/ltm:
01010029:5: Clock advanced by 518 ticks 01010029:5: Clock advanced by 505 ticks 01010029:5: Clock advanced by 590 ticks 01010029:5: Clock advanced by 568 ticks 01010029:5: Clock advanced by 1681 ticks 01010029:5: Clock advanced by 6584 ticks 01140029:5: HA daemon_heartbeat tmm fails action is failover and restart. 010c0026:5: Failover condition, active attempting to go standby.
Which issue caused the failover?
A. HA missing heartbeat packets
B. VLAN Fail-safe heartbeats
C. NTP being out of sync
D. TMM being descheduled
正解：D

質問 9：
Users in a branch office are reporting a website is always slow. No other users are experiencing the problem. The LTM Specialist tests the website from the external VLAN along with testing the servers directly. All tests indicate normal behavior. The environment is a single HTTP virtual server on the external VLAN with a single pool containing three HTTP pool members on the internal VLAN.
Which two locations are most appropriate to collect additional protocol analyzer data? (Choose two.)
A. the LTM device's external VLAN
B. the LTM device's internal VLAN
C. a user's Active Directory authentication
D. the switch local to the user
E. a user's machine
正解：D,E