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301b問題集PDFで301bリアル試験問題解答
F5 301b試験は、システム構成、管理、およびトラブルシューティングを含む、F5 LTMシステムに関連する広範なトピックをカバーしています。試験はまた、トラフィック管理、アプリケーション配信、高可用性、およびセキュリティなどの高度なトピックもカバーしています。これは包括的な試験であり、候補者がF5 LTMシステムを維持およびトラブルシューティングするために必要なスキルと知識を備えていることを保証します。
F5 301b LTMスペシャリスト：メンテナンス＆トラブルシューティング認定試験は、F5 LTM製品のメンテナンスとトラブルシューティングに特化したITプロフェッショナルのための必須認定です。この試験は、ITプロフェッショナルがF5 LTM製品をインストール、設定、メンテナンス、トラブルシューティングする能力を検証し、ネットワークプロトコルとネットワークセキュリティの知識を測定するように設計されています。試験に合格するには、F5 LTM製品とその機能についての徹底的な理解が必要であり、この重要な分野での専門知識を証明することにより、ITプロフェッショナルのキャリアアップを支援することができます。
質問 # 105
An LTM Specialist is setting up a monitor for an HTTP 1.1 server. The response to a GET / is:
HTTP/1.1 302 Moved Temporarily
Location: http://www.example.com/new/location.html
Which send string settings should the LTM Specialist use to force a proper response?
- A. GET /new/location.html HTTP/1.1\r\nHost: www.example.com\r\nConnection: Close\r\n\r\n
- B. GET / HTTP/1.0\r\nHost: host.domain.com\r\nConnection: Close\r\n\r\n
- C. GET / HTTP/1.1\r\nHost: www.example.com/new/location.html\r\nConnection: Close\r\n\r\n
- D. GET /new/location.html HTTP/1.1\r\nHost: host.domain.com/new/locations.html\r\nConnection: Close\r
\n\r\n
正解：A
質問 # 106
An application owner claims an LTM device is delaying delivery of an HTTP application. The LTM device has two VLANs, an internal and an external. The application servers reside on the internal VLAN. The virtual server and clients reside on the external VLAN.
With appropriate filters applied, which solution is most efficient for obtaining packet captures in order to investigate the claim of delayed delivery?
- A. one capture on the external interface
- B. one capture on the management interface
- C. one capture on the internal interface
- D. one capture on interface 0.0
正解：D
質問 # 107
An LTM Specialist configures an HTTP monitor as follows:
ltm monitor http stats_http_monitor {
defaults-from http
destination *:*
interval 5
recv "Health check: OK"
send "GET /stats/stats.html 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
}
The monitor is marking all nodes as down. A trace of the HTTP conversation shows the following:
GET /stats/stats.html HTTP/1.1
Host: www.example.com
Accept-EncodinG. gzip, deflate
Connection: close
HTTP/1.1 401 Authorization Required
DatE. Tue, 23 Oct 2012 19:38:56 GMT
Server: Apache/2.2.15 (Unix)
WWW-AuthenticatE. Basic realm="Please enter your credentials"
Content-LengtH. 480
Connection: close
Content-TypE. text/html; charset=iso-8859-1
Which action will resolve the problem?
- A. Add a valid username and password to the monitor.
- B. Add an NTLM profile to the virtual server.
- C. Add a backslash before the colon in the receive string.
- D. Use an HTTPS monitor with a valid certificate instead.
正解：A
質問 # 108
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
Which URL should be reported to the server/application team as getting user-visible errors?
- A. /browserspecific.html
- B. /env.cgi
- C. /page14.cgi
- D. /reflector.php
正解：C
質問 # 109
An LTM Specialist is troubleshooting an issue with a new virtual server. When connecting through the virtual server, clients receive the message "Unable to connect" in the browser, although connections directly to the pool member show the application is functioning correctly. The LTM device configuration is:
ltm virtual /Common/vs_https {
destination /Common/10.10.1.110:443
ip-protocol udp
mask 255.255.255.255
pool /Common/pool_https
profiles {
/Common/udp { }
}
translate-address enabled
translate-port enabled
vlans-disabled
}
ltm pool /Common/pool_https {
members {
/Common/172.16.20.1:443 {
address 172.16.20.1
}
}
}
What issue is the LTM Specialist experiencing?
- A. The pool member is marked down by a monitor.
- B. The pool member is marked down administratively.
- C. The virtual server is disabled on all VLANs.
- D. The virtual server is configured for the incorrect protocol.
正解：D
質問 # 110
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
A layer 2 nPath routing configuration has been deployed. A packet capture contains a client connection packet with the following properties:
Source IP: <Virtual Server>
Destination IP: <Client A>
At which two locations could the packet capture have been taken? (Choose two.)
- A. the internal interface of the Internet firewall
- B. the external VLAN interface of the LTM device
- C. the DMZ interface of the Internet firewall
- D. the network interface of web server
正解：A、D
質問 # 111
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
A client attempts to connect from a Google Chrome browser to a virtual server on a BIG-IP LTM.
The virtual server is SSL Offloaded. When the client connects, the client receives an SSL error.
After trying Mozilla Firefox and Internet Explorer browsers, the client still receives the same errors.
The LTM Specialist does an ssldump on the virtual server and receives the results as per the exhibit.
What is the problem?
- A. The BIG-IP LTM is NOT listening on port 443.
- B. The SSL key length is incorrect.
- C. The client needs to be upgraded to the appropriate cipher-suite.
- D. The BIG-IP LTM is NOT serving a certificate.
正解：D
質問 # 112
A failover event is recorded in the log messages:
Jan 01 00:00:50 BIG-IP notice sod[5855]: 01140029:5: HA proc_running tmm fails action is go offline and down links.
Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c0050:5: Sod requests links down.
Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c0054:5: Offline for traffic group /Common/traffic-
group-1.
Jan 01 00:00:50 BIG-IP notice sod[5855]: 010c003e:5: Offline
Jan 01 00:00:50 BIG-IP notice logger: /usr/bin/tmipsecd --tmmcount 4 ==> /usr/bin/bigstart stop
racoon
Jan 01 00:00:50 BIG-IP info lacpd[5502]: 01160016:6: Failover event detected. (Switchboard failsafe disabled while offline)
Jan 01 00:00:51 BIG-IP err bcm56xxd[5296]: 012c0010:3: Failover event detected. Marking external interfaces down. bsx.c(3633)
Jan 01 00:00:51 BIG-IP info bcm56xxd[5296]: 012c0015:6: Link: 1.1 is DOWN
Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 0107143c:5: Connection to CMI peer 10.0.0.3 has been removed
Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 0107143a:5: CMI reconnect timer: enabled
Jan 01 00:00:56 BIG-IP notice mcpd[5318]: 01071431:5: Attempting to connect to CMI peer
10.0.0.3 port 6699
What is the cause of the failover?
- A. TMM failed, and system fail-safe initiated the failover.
- B. A switchboard failure caused system fail-safe to initiate the failover.
- C. TMM failed, and VLAN fail-safe initiated the failover.
- D. Loss of connection to CMI peer 10.0.0.3 initiated the failover.
正解：A
質問 # 113
An LTM Specialist configures an HTTP monitor as follows:
ltm monitor http stats_http_monitor { defaults-from http destination *:*
interval 5
recv "Health check: OK"
send "GET /stats/stats.html 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
}
The monitor is marking all nodes as down. A trace of the HTTP conversation shows the following:
GET /stats/stats.html HTTP/1.1
Host: www.example.com
Accept-EncodinG. gzip, deflate
Connection: close
HTTP/1.1 401 Authorization Required
DatE. Tue, 23 Oct 2012 19:38:56 GMT
Server: Apache/2.2.15 (Unix)
WWW-AuthenticatE. Basic realm="Please enter your credentials"
Content-LengtH. 480
Connection: close
Content-TypE. text/html; charset=iso-8859-1
Which action will resolve the problem?
- A. Add a valid username and password to the monitor.
- B. Add an NTLM profile to the virtual server.
- C. Add a backslash before the colon in the receive string.
- D. Use an HTTPS monitor with a valid certificate instead.
正解：A
質問 # 114
An LTM device has a virtual server configured as a Performance Layer 4 virtual listening on
0.0.0.0:0 to perform routing of packets to an upstream router. The client machine at IP address
192.168.0.4 is attempting to contact a host upstream of the LTM device on IP address 10.0.0.99.
The network flow is asymmetrical, and the following TCP capture displays:
# tcpdump -nnni 0.0 'host 192.168.0.4 and host 10.0.0.99' tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes
05:07:55.499954 IP 192.168.0.4.35345 > 10.0.0.99.443: S 3205656213:3205656213(0) ack
3267995082 win 1480 05:07:55.499983 IP 10.0.0.99.443 > 192.168.0.4.35345: R 1:1(0) ack 1 win 0 05:07:56.499960 IP 192.168.0.4.35345 > 10.0.0.99.443: S 3205656213:3205656213(0) ack
3267995082 win 1480 05:07:56.499990 IP 10.0.0.99.443 > 192.168.0.4.35345: R 1:1(0) ack 1 win 0 4 packets captured
Which option within the fastL4 profile needs to be enabled by the LTM Specialist to prevent the LTM device from rejecting the flow?
- A. Generate Initial Sequence Number
- B. Loose Initiation
- C. Loose Close
- D. Reset on Timeout
正解：B
質問 # 115
A client is attempting to log in to a web application that requires authentication. The following HTTP headers are sent by the client:
GET /owa/ HTTP/1.1
Authorization: Basic dXNlcm5hbWU6cGFzc3dvcmQ
User-Agent: curl/7.26.0
Host: 10.0.0.14
Accept: */*
Accept-EncodinG. gzip,deflate
The web server is responding with the following HTTP headers:
HTTP/1.1 401 Unauthorized
Content-TypE. text/html
Server: Microsoft-IIS/7.5
WWW-AuthenticatE. NTLM
DatE. Wed, 16 Aug 1977 19:12:31 GMT
Content-LengtH. 1293
The client has checked the login credentials and believes the correct details are being entered.
What is the reason the destination web server is sending an HTTP 401 response?
- A. The username and password are incorrect.
- B. The server has an incorrect date configured.
- C. The wrong authentication mechanism is being used.
- D. The client is using the wrong type of browser.
正解：C
解説：
Explanation/Reference:
質問 # 116
-- Exhibit -
-- Exhibit --
Refer to the exhibits.
How should the LTM Specialist minimize the configuration?
- A. The configuration is as minimized as possible.
- B. Remove the pool member level monitors.
- C. Create a single monitor, apply it to the pool, and remove the pool member level monitors.
- D. Create a single monitor and apply it to each pool member.
正解：C
質問 # 117
An LTM device has a virtual server configured as a Performance Layer 4 virtual listening on 0.0.0.0:0 to perform routing of packets to an upstream router. The client machine at IP address 192.168.0.4 is attempting to contact a host upstream of the LTM device on IP address 10.0.0.99.
The network flow is asymmetrical, and the following TCP capture displays:
# tcpdump -nnni 0.0 'host 192.168.0.4 and host 10.0.0.99'
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on 0.0, link-type EN10MB (Ethernet), capture size 96 bytes
05:07:55.499954 IP 192.168.0.4.35345 > 10.0.0.99.443: S 3205656213:3205656213(0) ack 3267995082 win 1480
05:07:55.499983 IP 10.0.0.99.443 > 192.168.0.4.35345: R 1:1(0) ack 1 win 0
05:07:56.499960 IP 192.168.0.4.35345 > 10.0.0.99.443: S 3205656213:3205656213(0) ack 3267995082 win 1480
05:07:56.499990 IP 10.0.0.99.443 > 192.168.0.4.35345: R 1:1(0) ack 1 win 0
4 packets captured
Which option within the fastL4 profile needs to be enabled by the LTM Specialist to prevent the LTM device from rejecting the flow?
- A. Generate Initial Sequence Number
- B. Loose Initiation
- C. Loose Close
- D. Reset on Timeout
正解：B
解説：
Explanation/Reference:
質問 # 118
-- Exhibit -
-- Exhibit --
Refer to the exhibit.
An LTM Specialist is troubleshooting an HTTP monitor that is marking a pool member as down.
Connecting to the pool member directly through a browser shows the application is up and functioning correctly.
How should the send string be modified to correct this issue?
- A. GET /\r\nHost: \r\n\r\n
- B. GET / HTTP/1.0\r\n\r\n
- C. GET /\r\n\r\n
- D. GET /\r\nHTTP/1.0\r\n\r\n
正解：B
質問 # 119
-- Exhibit- -- Exhibit -
Refer to the exhibit.
A server administrator notices that one server is intermittently NOT being sent any HTTP requests. The server logs display no issues. The LTM Specialist notices log entries stating the node (172.16.20.1) status cycling between down and up. The pool associated with the virtual server (10.10.1.100) has a custom HTTP monitor applied.
Which tcpdump filter will help trace the monitor?
- A. tcpdump -i external port 80 and host 172.16.20.1
- B. tcpdump -i internal port 80 and host 172.16.1.31
- C. tcpdump -i internal port 80 and host 172.16.1.33
- D. tcpdump -i external port 80 and host 10.10.1.100
正解：B
質問 # 120
An LTM Specialist wants to allow access to the Always On Management (AOM) from the network.
Which two methods should the LTM Specialist use to configure the AOM interface? (Choose two.)
- A. Log in to the Host via ssh, "ssh aom", and modify the network configuration file.
- B. Configure the AOM network address in the GUI under System>Platform.
- C. Configure the AOM IP from the front panel buttons and LCD.
- D. Choose the network configurator in the AOM menu on the serial port.
正解：A、D
質問 # 121
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
Which two items can be consolidated to simplify the LTM configuration? (Choose two.)
- A. /Common/vs3-https-redirect
- B. /Common/vs4-https-redirect
- C. /Common/vs2-https-redirect
- D. /Common/vs1-https-redirect
- E. /Common/vs5-https-redirect
正解：B、D
質問 # 122
A web application is meant to log the URI of the resource that responded to the client's initial Request-URI.
Which HTTP header will supply this information?
- A. Referer
- B. Server
- C. Trailer
- D. Via
正解：A
質問 # 123
-- Exhibit - -- Exhibit -
Refer to the exhibit.
An LTM Specialist is troubleshooting a new HTTP monitor on a pool. The pool member is functioning correctly when accessed directly through a browser, although the monitor is marking the member as down. As part of the troubleshooting, the LTM Specialist has captured the monitor traffic via tcpdump.
How should the LTM Specialist resolve this issue?
- A. Correct the firewall rules on the pool member.
- B. Modify the receive string to valid content.
- C. Add the 'http' monitor to the pool.
- D. Add the 'icmp' monitor to the node.
正解：B
質問 # 124
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
Which pool can be removed without affecting client traffic?
- A. server1_80
- B. server_pool
- C. ftp_pool
- D. http_pool
正解：B
質問 # 125
-- Exhibit-
-- Exhibit --
Refer to the exhibit.
A pair of LTM devices is configured for HA.
What happens if the pool member server with IP address 10.0.0.4 becomes totally
unresponsive to the active LTM device, but is still responsive to the standby LTM device?
- A. The HA-group will initiate a fail-over because the HA-Group score will be zero.
- B. The HA-group will initiate a fail-over because the threshold is set to 2.
- C. The HA-group will disable the trunk my_trunk.
- D. The HTTP application will be unavailable via the LTM device.
正解：B
質問 # 126
An LTM Specialist defines a receive string in the HTTP monitor and then assigns it to the HTTP pool. The monitor has an interval of 5 seconds and a timeout of 16 seconds.
If the receive string is NOT seen in the the HTTP payload after 20 seconds, how does the LTM device mark the monitor status?
- A. unavailable
- B. available
- C. offline
- D. unknown
- E. forced offline
正解：C
質問 # 127
An LTM Specialist with the Administrator role and terminal access of "tmsh" logs in via ssh and is in the Traffic Manager Shell. The LTM Specialist wants to enter the bash shell to review log files.
Which command does the LTM Specialist need to run to access the bash shell?
- A. run /util bash
- B. exit
- C. run /cli bash
- D. quit
正解：A
質問 # 128
......
F5 301b（LTM Specialist：Maintain＆Troubleshoot）試験は、F5 Networks Local Traffic Manager（LTM）ソリューションのメンテナンスとトラブルシューティングにおける専門知識を証明したいプロフェッショナル向けに設計された認定試験です。この試験は、システムのトラブルシューティング、パフォーマンスチューニング、およびセキュリティ管理などの分野での候補者の知識とスキルをテストする難しい試験です。この試験に合格することは、F5 Networksテクノロジーの専門知識を証明し、キャリアの見通しを向上させるための素晴らしい方法です。
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