Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade Exam

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Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade Exam

You create a static pointtopoint VTI tunnel on RouterA. Afterward, you issue the show runningconfig command and receive the following output: Which of the following is the authentication transform that will be used by the static VTI tunnel? (Select the best answer.)

Set dfs.block.size to 128M on all the worker nodes, on all client machines, and on the NameNode, and set the parameter to final. ✘ Set dfs.block.size to 134217728 on all the worker nodes, on all client machines, and on the NameNode, and set the parameter to final. ✘ Set dfs.block.size to 134217728 on all the worker nodes and client machines, and set the parameter to final. You do need to set this value on the NameNode. ✘ Set dfs.block.size to 128M on all the worker nodes and client machines, and set the parameter to final. You do need to set this value on the NameNode. ✔ You cannot enforce this, since client code can always override this value. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

To ease administrative overhead, you want to add a third party feed to a Security Intelligence device so that the IP addresses of known malicious hosts are automatically blacklisted. However, you have not determined whether the feed is valid. Which of the following are you most likely to do? (Select the best answer.)

Configuration of rack awareness is accomplished using a configuration file. You cannot use a rack topology script. Even for small clusters on a single rack, configuring rack awareness will improve performance. Rack location is considered in the HDFS block placement policy HDFS is rack aware but MapReduce daemons are not Hadoop gives preference to Intra rack data transfer in order to conserve bandwidth

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following is primarily true of SEM systems? (Select the best answer.)

ResourceManager ✘ ApplicationMaster ✘ NodeManager ✘ ApplicationManager ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You want to configure Cisco ISE as a SCEP proxy to a Microsoft Windows 2008 R2 Server root CA. Which of the following also needs to be configured? (Select the best answer.)

They must not formatted - - HDFS will format the filesystem automatically ✘ They may be formatted in any Linux filesystem ✘ They must be formatted as HDFS ✘ They must be formatted as either ext3 or ext4 ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You issue the following commands on a Cisco router: tacacsserver host ts1 single-connection timeout 20 tacacsserver timeout 30 Which of the following are true about how the Cisco router communicates with the TACACS+ server? (Select 2 choices.)

The client queries the NameNode which retrieves the block from the nearest DataNode to the client and then passes that block back to the client. ✘ The client queries the NameNode for the locations of the block, and reads from a random location in the list it retrieves to eliminate network I/O leads bybalancing which nodes it retrieves data from at any given time. ✘ The client queries the NameNode for the locations of the block, and reads all three copies. The first copy to complete transfer to the client is the one the clientreads as part of Hadoop's speculative execution framework. ✘ The client queries the NameNode for the locations of the block, and reads from the first location in the list it receives. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You want to implement a VPN with an alwayson fail close policy for Cisco AnyConnect clients. Which of the following does Cisco recommend that you do? (Select the best answer.)

They will see the file with its original name. if they attempt to view the file, they will get a ConcurrentFileAccessException until the entire file write is completed on the cluster ✘ They will see the file with a ._COPYING_extension on its name. If they attempt to view the file, they will get a ConcurrentFileAccessException until the entire filewrite is completed on the cluster. ✘ They will see the file with a ._COPYING_ extension on its name. if they view the file, they will see contents of the file up to the last completed block (as each64MB block is written, that block becomes available) ✘ The directory will appear to be empty until the entire file write is completed on the cluster ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Your company is using a shopping cart web application that is known to be vulnerable to a code injection attack. Your company has no support agreement for the application, and the application is no longer updated by its author. Modifying the code would require the hiring of additional help and an extensive interview process. Which of the following should your company do in the meantime to most quickly mitigate the threat? (Select the best answer.)

Decrease the io.sort.mb value to 0 ✘ Increase the io.sort.mb to 1GB ✘ For 1GB child heap size an io.sort.mb of 128 MB will always maximize memory to disk I/O ✘ Tune the io.sort.mb value until you observe that the number of spilled records equals (or is as close to equals) the number of map output records ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following is a Cisco IPS appliance feature that analyzes normal network activity to detect hosts that are infected with worms? (Select the best answer.)

Delete the /swapfile file on the node ✘ Set vm.swappiness to o in /etc/sysctl.conf ✘ Set the ram.swap parameter to o in core-site.xml ✘ Delete the /etc/swap file on the node ✔ Delete the /dev/vmswap file on the node ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following can be used to encrypt email messages, files, and disk drives? (Select the best answer.)

Fair Scheduler ✘ FIFO Scheduler ✘ Capacity Scheduler ✘

YARN doesn't configure a default scheduler. You must first assign a appropriate scheduler class in yarn-site.xml

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

According to the branch location ACL design guidelines in the Cisco BYOD Design Guide, which protocols should not be permitted by the default ACL that is applied to the access ports of a Layer 2 switch? (Select 2 choices.)

No action is needed: YARN's dynamic resource allocation automatically optimizes the node memory and cores ✘ Modify yarn-site.xml with the following property: yarn.nodemanager.resource.cpu- vcores16 ✘ Modify yarn-site.xml with the following property: yarn.scheduler.minimum-allocation- mb2048 ✘ Modify yarn-site.xml with the following property: yarn.scheduler.minimum-allocation- mb4096 ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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Cloudera Certified Administrator for Apache Hadoop (CCAH) CDH5 Upgrade Exam

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