One disadvantage of symmetric cryptography isSelect one:a.It is not scalableb. It is not efficientTwo key needs to be memorizedC.d. Keys can be kept secure alwayse.None of these given optionsureOne of the disadvantages of UEFI compared with BIOS isSelect one:O a. UEFI is limited to hard disk size of a few terabytesb. UEFI can include additional restrictions on the particular OS installed on the systemC. Unlike BIOS, UEFI can only begin network connections after the user has logged ind. UEFI takes longer to start up hardware devices compared with BIOSe. None of these optionsPublic key cryptography can protect the confidentiality of a message. Which key is used to decryptsuch a message and by whom?Select one:Oa private key, by recipientOb. public key, by senderOc.shared key, by both recipient and senderOd.everyone seeing the messagee private key, by senderThe main function of a multiplexer is toSelect one:a. compare the current contents of the AC register to the value zero.b. transform a set of digital input signals into an equivalent decimal code at its output.c. select one of several inputs based on selector binary combination to output.d. activate one output based on a binary number.e. None of these options000000000000000 Find the mantissa bits (23 bits) for 32.25 using single precision IEEE 754 Floating Point Standard.Select one01000000000000000000000O ab. 00000010000000000000000Oc. 00000100000000000000000Od. 00000000000000000000000O. None of these optionsHow many wires does an address bus need in order to address 4n words of memory?Select one:O a. mOb. 2*nO. Log2(n+1)Od. 2ne. 4'nIf p=7, q=17, what is the RSA public key represented as (e, n)?Ser oneOa (5 119)O 7 119)Oc (5 77)Od. (5. 117)Oe None of these optionsRep回 @In a firewall rule, which information identifies the service that should be allowed to be accessedfrom outside the network?Select one:O a. Destination IP addressb. Source IP addressOc. Geo information related to the IP addressedd. Destination portOe Source portIn Process Management, what is Turnaround time?toneOa the total waiting time for a process to finish executionO. the total time spent in the ready queueOc the total time spent in the running queueO4 the total time from the completion till the submission of a processOe none of these options22242 eis a method that synchronizes the CPU with an 1/O device in which the devicesends a signal when it is ready.Select one:O a Direct memory access (DMA)Ob. InterruptO. Memory mappingOd. PollingOe None of these options

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This question is comes from Cryptography which is a paper of Computer Science.
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One disadvantage of symmetric cryptography is Select one it is not scalable Ob. tis not efficient Two key needs to be memortzed d. Keys can be kept secure always e None of these given options c. 00000