CMS专题
单选题Which statement is true regarding a session key in the Diffie-Hellman key-exchange process?（）A A session key value is exchanged across the network.B A session key never passes across the network.C A session key is used as the key for asymmetric data en
题目
A session key value is exchanged across the network.
A session key never passes across the network.
A session key is used as the key for asymmetric data encryption.
A session key is used as the key for symmetric data encryption.
相似问题和答案
第1题：
A. It can be set at the system, session, or table level.
B. It is used only across statements in the same session.
C. It can store the results from normal as well as flashback queries.
D. It can store the results of queries based on normal, temporary, and dictionary tables.
第2题：
Which statement is TRUE ________．
A.Key letters or abbreviations may not be used in GMDSS radio logbooks under any circumstance
B.Urgent communications do not need to be entered in the GMDSS radio log
C.Both of the above
D.None of the above
第3题：
(b) Discuss the key issues which the statement of cash flows highlights regarding the cash flow of the company.
(10 marks)
(b) Financial statement ratios can provide useful measures of liquidity but an analysis of the information in the cash flow
statement, particularly cash flow generated from operations, can provide specific insights into the liquidity of Warrburt. It is
important to look at the generation of cash and its efficient usage. An entity must generate cash from trading activity in order
to avoid the constant raising of funds from non-trading sources. The ‘quality of the profits’ is a measure of an entity’s ability
to do this. The statement of cash flow shows that the company has generated cash in the period despite sustaining a
significant loss ($92m cash flow but $21m loss). The problem is the fact that the entity will not be able to sustain this level
of cash generation if losses continue.
An important measure of cash flow is the comparison of the cash from operating activity to current liabilities. In the case of
Warrburt, this is $92m as compared to $155m. Thus the cash flow has not covered the current liabilities.
Operating cash flow ($92 million) determines the extent to which Warrburt has generated sufficient funds to repay loans,
maintain operating capability, pay dividends and make new investments without external financing. Operating cash flow
appears to be healthy, partially through the release of cash from working capital. This cash flow has been used to pay
contributions to the pension scheme, pay finance costs and income taxes. These uses of cash generated would be normal for
any entity. However, the release of working capital has also financed in part the investing activities of the entity which includes
the purchase of an associate and property, plant and equipment. The investing activities show a net cash outflow of
$43 million which has been financed partly out of working capital, partly from the sale of PPE and AFS financial assets and
partly out of cash generated from operations which include changes in working capital. It seems also that the issue of share
capital has been utilised to repay the long term borrowings and pay dividends. Also a significant amount of cash has been
raised through selling AFS investments. This may not continue in the future as it will depend on the liquidity of the market.
This action seems to indicate that the long term borrowings have effectively been ‘capitalised’. The main issue raised by the
cash flow statement is the use of working capital to partially finance investing activities. However, the working capital ratio
and liquidity ratios are still quite healthy but these ratios will deteriorate if the trend continues.
第4题：
Which two statements regarding asymmetric key encryption are true？（）
- A、The same key is used for encryption and decryption.
- B、It is commonly used to create digital certificate signatures.
- C、It uses two keys： one for encryption and a different key for decryption.
- D、An attacker can decrypt data if the attacker captures the key used for encryption
正确答案:A,B
第5题：
Which statement is true regarding a session key in the Diffie-Hellman key-exchange process?（）
- A、A session key value is exchanged across the network.
- B、A session key never passes across the network.
- C、A session key is used as the key for asymmetric data encryption.
- D、A session key is used as the key for symmetric data encryption.
正确答案:B
第6题：
A. TCP RST is sent and a session is restarted.
B. TCP connection is closed gracefully and the data content is dropped.
C. TCP traffic is allowed and an SNMP trap is sent.
D. AV scanning is restarted.
第7题：
Which statement is true regarding Backup tasks in Cisco UCS？（）
- A、 They are created automatically and stored on the FI
- B、 They are created manually and exported to a remote server
- C、 They are automatically scheduled to run every 24 hours
- D、 They are manually scheduled and stored on the FI
正确答案:B
第8题：
A. It executes successfully but partition pruning cannot happen for this partition key.
B. It produces an error because the TOTAL_VALUE column cannot be used as a partition key.
C. It produces an error because compression cannot be used for the TOTAL_VALUE partition key.
D. It executes successfully but the values in the TOTAL_VALUE column would not be physically stored in the partitions.
第9题：
Which statement is true regarding syslog on Junos devices?（）
- A、No logging is enabled by default
- B、By default the information is stored in all file named events
- C、Only the message severity level must be configured
- D、You can configure the router to send log messages to the console
正确答案:D
第10题：
Which statement is true regarding RMAN components？（）
- A、Each target database requires its own recover catalog.
- B、RMAN scripts can be stored in the recovery catalog or the target control file.
- C、A channel is a stream of data to a device type and corresponds to one server session.
- D、The RMAN executable interprets sever session commands and establishes connections to the target database.
正确答案:C