[2023年06月13日] 301aのPDFで最近更新された問題です集試験点数を伸ばそう
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F5 301a試験は、F5 BIG-IP LTMソリューションの展開と設定に関連する広範なトピックをカバーする60の多肢選択問題から構成されています。これらのトピックには、ネットワークやアプリケーションプロトコル、仮想サーバの設定、高可用性、セキュリティ、およびトラブルシューティングが含まれます。この試験は、候補者が実世界のシナリオで複雑なF5 BIG-IP LTMソリューションを設計、展開、および管理するための知識とスキルをテストするために設計されています。
F5 301a試験は、BIG-IP LTMソリューションの設計と展開、高度なLTM機能の構成、BIG-IP LTM環境の管理、一般的な問題のトラブルシューティングなど、さまざまなトピックをカバーしています。試験に合格するためには、候補者はさまざまなシナリオでBIG-IP LTMソリューションを構成および管理する能力、およびF5製品と技術の知識を証明する必要があります。試験に合格することは、F5 BIG-IPソリューションで作業するITプロフェッショナルがキャリアを進めるために貴重な資格です。
質問 # 88
An LTM Specialist discovers an issue with the custom http monitor that returns in a false positive status.
The end users cannot get the right website, but the http monitor marks the pool member UP.
What is causing the false positive result?
- A. The response is chunked.
- B. The Content-Type has value "iso-8859-200".
- C. The response is compressed.
- D. The end user should use another type of browser.
正解：B
質問 # 89
Refer to the exhibit.
The http monitor is applied to a pool. All members are enabled. One server responds as follows.
What is the resulting status of this poo! member?
- A. Offline (Disabled)
- B. Offline (Enabled)
- C. Available (Enabled)
- D. Unavailable (Disabled)
正解：B
解説：
The first picture "Send String" and "Receive String" are not clear. Send String should be "GOOD", the response packet does not contain this keyword. Receive Disable String is completely unclear. If the response packet contains the content of Receive Disable String at this time, it will be Available (Disabled), If the content of Receive Disable String is not included, then Offline (Enabled).
質問 # 90
An LTM Specialist must create a new virtual server for HTTP access. The LTM Specialist creates a forwarding virtual server to reach the resource.
What is a potential result of this action?
- A. Packet filter allowances are also required
- B. Other service ports could be allowed
- C. HTTP traffic is NOT allowed
- D. IP conflict result
正解：C
質問 # 91
Refer to the exhibit.
An LTM Specialist configures the two syslog destination Syslog destination #1 can receive messages but the syslog destination #2 can NOT receive messages.
Which command sill correct the issue?
- A. {Common(tmos) # modify/syslog remote-servers modify {syslog_dest2 {lost.10.10.10.28 }}
- B. {/Common) (tmos) # modify /sys syslog remote-servers modify {syslog_dest2 {host 10 208.102.254 }}
- C. {/Common)(tmos) # modify /syssyslog remote-servers modify (syslog_dest2 {local-ip
- D. {/Common)(tmos) # modify Ays syslog remote servers modify {syslog_dest2 {local- ip 10.208.102 254)}
正解：C
質問 # 92
Which Standard Virtual Server settings should an LTM Specialist use to load balance across routed path of two different ISPs?
- A. both address and port translation disabled
- B. address translation disabled and port translation enabled
- C. both address and port translation enabled
- D. address translation enabled and port translation disabled
正解：C
質問 # 93
An LTM Specialist has detected that a brute force login attack is occurring against the SSH service via a BIG-IP management interface. Login attempts are occurring from many IPs within the internal company network. BIG-IP SSH access restrictions are in place as follows:
The LTM Specialist has determined that SSH access should only occur from the 192.168.1.0/24 and 172.16.254.0/23 networks.
Which tmsh command should the LTM Specialist use to permit access from the desired networks only?
- A. modify/sys sshd login enable {''192.166.10/24'''' ''172.16 254 0/23
- B. modify.sys sshd allow add {''192.168. 10/24 , '' ''172. 16 2540/23'')
- C. modify/sys allow replace-all-with {''192.168.1.00/24'', ''192.16.254.0/23''}
- D. modify /sys sshd login disable (''10.0.00/8'', ''172 16.0 0/12'', ''192. 168.0.0/16'')
正解：C
解説：
Select C to overwrite the existing network's allow configuration over the specified network segment.
質問 # 94
An LTM Specialist is experiencing issues in a failover event. Certain long-lasting FTP event. Certain long-lasting FTP connections using a single node pool are forced to reconnect. The bigip.conf extract is shown:
What does the LTM Specialist need to change in the configuration to avoid this issue?
- A. persistence mirroring
- B. connection mirroring
- C. snatpool
- D. ftp profile
正解：B
解説：
The stem mentions that it is a single server node, so there is no need to consider the factors of session maintenance. The actual requirement is to maintain the original connection status during failover. You need to configure connection mirroring to synchronize the connection status between the devices in the cluster in real time.
質問 # 95
The web application team requests help from the LTM Specialist to Improve the performance of their web sites that are load balanced by the F5 LTM device with a Standard Virtual Server.
Which virtual server type will improve the performance of the web application servers?
- A. Performance (Layer 4)
- B. Performance (HTTP)
- C. Forwarding (IP)
- D. Stateless
正解：B
質問 # 96
When importing a PEM formatted SSL certificate, which text needs to appear first in the file?
- A. ...BEGIN CERTIFICATE....
- B. --START CERTIFICATE....
- C. ...SSL CERTIFICATE....
- D. ...SECURITY CERTIFICATE....
正解：A
質問 # 97
A VCMP guest has the following characteristics:
* Resources allocated for CPU memory, network interfaces, and disk space
* Virtual disk created
* The guest is NOT running
The guest is NOT running in which state is the VCMP guest
- A. Offline
- B. Provisioned
- C. Deployed
- D. Configured
正解：B
質問 # 98
An LTM device configured with a management IP address and route and a series of self-IPs and TMM routes. Both management and TMM have a routing entry for 101 10/24 Application traffic is being load balanced and sent to pool member 10.1.1.123 with SNAT Automap and configured.
Which route will the LTM device use?
- A. management route when TMM interface is down or TMM is offline
- B. TMM route regardless of the management port status
- C. management route regardless of the management port status
- D. equal cost multipath load balancing via both routes
- E. both routes, which will duplicate traffic on both management and TMM interface
正解：B
質問 # 99
AN LTM Specialist is deploying an iRule designed to determine the country of origin of an incoming client connection. The iRule needs to be used with an SSL-enabled web application.
Which profile required for the iRule to function properly?
- A. UDP
- B. DNS
- C. TCP
- D. HTTP
正解：C
解説：
Question stem requires the client IP to match the source region, so TCP ?UDP at the transport layer can meet the requirements. The title stem mentions that it is a Web application based on SSL, and it does not mention F5 undertakes SSL offload, So TCP is enough.
質問 # 100
A virtual server is configured to handle https traffic. The clientssl profile is configured to use a2048-bit RSA key. Due to security requirements, is the LTM Specialist needs to use a 4096-bit RSA key in the future.
What two effects will this change have on the BIG-IP device? (Choose two)
- A. Increased of concurrent connection on client-side
- B. Decrease to 20% of licensed TPS
- C. Increase of TLS Renegotiation
- D. Increase of CPU usage on the BIG-IP device
- E. Decrease to 90% of licensed TPS
正解：B、D
質問 # 101
An LTM Specialist configures a new virtual server with a single pool member. The LTM Specialist has NOT defined a health monitor for the pool, pool member or node.
What is the status of the virtual server?
- A. Offline (Disabled)
- B. Unknown (Enabled)
- C. Unavailable (Enabled)
- D. Available (Enabled)
正解：B
質問 # 102
A LTM device needs to load balance active and passive FTP traffic while using only a single virtual server.
Which virtual server type should an LTM Specialist configure on the LTM device?
- A. Standard
- B. Forwarding (Layer 2)
- C. DHCP relay
- D. Stateless
- E. Forwarding (IP)
正解：E
質問 # 103
An LTM device needs an additional traffic group.
Which configuration item is required?
- A. Default device
- B. Group name
- C. Auto Fallback Timeout
- D. MAC Masquerade Address
正解：B
質問 # 104
Refer to the exhibit.
The pool shown is configured with four pool members in a variety of states. The application is receiving a large number of request. The LTM Specialist needs to make changes to make sure that all members receive the same levels of traffic.
Which changes need to be made?
- A. Enable 10.80.1.40 and 10.80.1.20 disable priority group activation, enable ratio.
- B. Enable 10.80.1.20 disable priority group activation, enable Round Robin
- C. Enable 10.80.1.40 disable priority group activation, enable ratio
- D. Enable 10.80.1.40 and 10.80.1.1.20 disable group activation, enable Round Robin
正解：D
質問 # 105
Exhibit.
- The ITM devices LTM 1 and LTM2 are configured in Device Group X (Sync-Failover)
- LTM3 and LTM4 are configured in Device Group Y (Sync-Only)
- An LTM specialist configures Device Group Z (Sync-Only) to keep several profiles in (sync-Only) to keep several profiles in sync across all devices.
- Device GROUP X has four Traffic Groups A, B, C and D configured.
- Device Group Y has four Traffic Groups E, F, G, and H configured
- Auto Fallback IS NOT Enabled.
- Each Device group is healthy and able to pass traffic for any traffic group assigned to that Device Group.
The data center that contains LTM2 and LTM4 loses power. After 10 minutes; power is restored and all devices are up and healthy.
What is the state of each Traffic Group on each ITM device after power is restored?
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
正解：C
質問 # 106
Exhibit.
The three VLANS shown provide connectivity to backend servers. The backend servers are being moved to unmanaged switches and require separate interfaces.
How should the F5 device interfaces be configured?
- A. Create VLAN_A move interface 1.1 to untagged. Create VLAN_B move interface 1.2 to untagged. Create VLAN_C move interface 1.3 to untagged.
- B. Create a Trunk interface and select VLAN_A, VLAN_B. and VLAN_C.
- C. Create VLAN named VLAN_A enter 100 under Tag and move interface 1.1 to tagged Create VLAN_B enter 200 and move interface 1.2 to tagged Create VLAN_C Center 300 and move interface 1.3 to tagged.
- D. Create a Trunk interface and combined interface 1.1.1.2 and 1.3.
正解：A
質問 # 107
The network team introduces a new subnet 10.10.22.0/24 to the network. The route needs to be configured on the F5 device to access this network via the 30.30.30.158 gateway.
How should the LTM Specialist configure this route?
- A. Tmsh create net route 10.10.22/24 gw 30.30.30.158
- B. Tmsh changey net route 10.10.22/24 gw 30.30.30.158
- C. Tmsh modify net route 10.10.22/24 gw 30.30.30.158
- D. Tmsh add net route 10.10.22/24 gw 30.30.30.158
正解：A
質問 # 108
An LTM Specialist to configure a backend server to be disabled it takes longer than 30 seconds to respond to a request.
Which values should the LTM Specialist enter for interval and timeout?
- A. Interval 10, timeout 31
- B. Interval 10, timeout 30
- C. Interval 30, timeout 30
- D. Interval 30, timeout 91
The official recommendation is that timeout 3 times the interval value +1.
正解：A
質問 # 109
Refer to the exhibit.
An LTM Specialist has multiple SNAT and virtual server objects configured as in the bigip.conf shown.
The LTM Specialist tests a connection from a client with. IP 172.163.31.11 to 192.168.0.100:80.
Which two objects will show an increase in Local Traffic statistics connections?
- A. VS_A&SNAT_B
- B. VS_A & SNAT A
- C. VS_B&SNAT_B
- D. VS_ B & SNAT A
正解：A
質問 # 110
An LTM Specialist upgrades the switching infrastructure and the backend servers on the LAN segments.
The LTM Specialist notices a 20% memory usage increase on the BIG-IP device while handling the same number of concurrent connections.
A comparison of statistics pre-upgrade and post-upgrade shows a significant reduction on the following:
-RTT between the BIG-IP device and the backend servers
-Packet drops in the switch
Time to First Byte (TTFB)
The LTM Specialist is concerned with the scalability of the number of concurrent connections with the new memory usage.
Which setting should be changed to reduce the memory usage on the BIG-IP device?
- A. Increase the proxy buffer high setting on the server-side TCP profile
- B. Increase the receive window of the client-side TCP profile
- C. Reduce the idle of the client-side TCP profile
Explanation
After adjusting the architecture, the network quality becomes better. With the connection unchanged the memory usage increase by 20%. It means that the sending speed of the server is higher than the receiving speed of the client. F5 caches more content on the memory and causes the memory usage to.... - D. Reduce the proxy buffer high setting on the server-side TCP profile
正解：D
質問 # 111
What should an LTM Specialist configure on an LTM device to send AVR notification emails?
- A. Custom SNMP traps on the LTM device for AVR notifications
- B. Email notification to be sent via iControl from the LTM device
- C. Email notification to be sent via SMTP from the LTM device
- D. Syslog on the LTM device to send to an SMTP server
正解：C
質問 # 112
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