多选题Which two statements are true about encrypting RMAN backup？（）AThe transparent encryption of backups uses the encryption walletBThe database uses the same encryption key for every encrypted backupCThe password encryption of backups only uses the password while creating and restoring backupDIf transparent encryption is configured， you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups
多选题
Which two statements are true about encrypting RMAN backup？（）
A
The transparent encryption of backups uses the encryption wallet
B
The database uses the same encryption key for every encrypted backup
C
The password encryption of backups only uses the password while creating and restoring backup
D
If transparent encryption is configured， you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups
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Examine the following RMAN command:RMAN CONFIGURE ENCRYPTION FOR DATABASE ON;RMAN BACKUP DATABASE PLUS ARCHIVELOG;Which prerequisite must be met before accomplishing the backup?() A. Provide a password for the encryptionB. Set up an Oracle wallet for the encryptionC. No setup is required as it is a default encryption methodD. Both Oracle wallet and password must be set up for the encryption
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Examine the following RMAN command:RMAN CONFIGURE ENCRYPTION FOR DATABASE ON;RMAN BACKUP DATABASE PLUS ARCHIVELOG;Which prerequisite must be met before accomplishing the backup?（）A、Provide a password for the encryptionB、Set up an Oracle wallet for the encryptionC、No setup is required as it is a default encryption methodD、Both Oracle wallet and password must be set up for the encryption
Which two statements are true about encrypting RMAN backup？（）A、 The transparent encryption of backups uses the encryption walletB、 The database uses the same encryption key for every encrypted backupC、 The password encryption of backups only uses the password while creating and restoring backupD、 If transparent encryption is configured， you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups
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Which two statements are true about encrypting RMAN backup?（） (Choose two.)A、The transparent encryption of backups uses the encryption walletB、The database uses the same encryption key for every encrypted backupC、The password encryption of backups only uses the password while creating and restoring backupD、If transparent encryption is configured, you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups.
多选题Which two statements regarding asymmetric key encryption are true？（）AThe same key is used for encryption and decryption.BIt is commonly used to create digital certificate signatures.CIt uses two keys： one for encryption and a different key for decryption.DAn attacker can decrypt data if the attacker captures the key used for encryption
多选题Which two statements are true about encrypting RMAN backup?（）AThe transparent encryption of backups uses the encryption walletBThe database uses the same encryption key for every encrypted backupCThe password encryption of backups only uses the password while creating and restoring backupDIf transparent encryption is configured, you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups.
多选题Which two statements are true about encrypting RMAN backup？（）AThe transparent encryption of backups uses the encryption walletBThe database uses the same encryption key for every encrypted backupCThe password encryption of backups only uses the password while creating and restoring backupDIf transparent encryption is configured， you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups
多选题Which two statements are true about encrypting RMAN backup?（） (Choose two.)AThe transparent encryption of backups uses the encryption walletBThe database uses the same encryption key for every encrypted backupCThe password encryption of backups only uses the password while creating and restoring backupDIf transparent encryption is configured, you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups.
多选题Which two statements about OSPF IPv6 routing are true？（）AIt requires OSPF version 3.Bautomatically detects neighbors over NHMA interfacesCIt supports encryption usingDIt uses LSA type 9EIt uses LSA type 8
单选题Which description about asymmetric encryption algorithms is correct？（）AThey use the same key for encryption and decryption of data.BThey use different keys for decryption but the same key for encryption of data.CThey use different keys for encryption and decryption of data.DThey use the same key for decryption but different keys for encryption of data.
多选题Which two wireless security statements are true？（）AA TACACS+ server is required to implement 802.1x.BMIC protects against man-in-the-middle and replay attacks.CThe 802.1x standard provides encryption services for wireless clients.DThe AES （symmetric block cipher） is specified in the IEEE 802.11i specification.EThe IEEE 802.11i specification uses RC4 as its encryption mechanism.FWPA requires TKIP and AES as encryption methods.
多选题Which two statements about the Wired Equivalent Privacy （WEP） encryption mechanism are true？ （）Athe two methods of authentication using the WEP encryption are open and shared keyBthe 802.11 standard defines WEP security using 128-bit keysCWEP can provide stronger authentication through the use of LEAP， PEAP， or EAP-FASTDWEP is a scalable encryption solution that uses static keys for authenticationEWEP security provides only one-way authenticationFWEPv2 offers improved encryption by replacing the RC4 encryption mechanism with the AES （symmetric block cipher） mechanism
单选题Examine the following RMAN command:RMAN CONFIGURE ENCRYPTION FOR DATABASE ON;RMAN BACKUP DATABASE PLUS ARCHIVELOG;Which prerequisite must be met before accomplishing the backup?（）AProvide a password for the encryptionBSet up an Oracle wallet for the encryptionCNo setup is required as it is a default encryption methodDBoth Oracle wallet and password must be set up for the encryption
多选题Which two statements regarding symmetric key encryption are true?（） (Choose two.)AThe same key is used for encryption and decryption.BIt is commonly used to create digital certificate signatures.CIt uses two keys: one for encryption and a different key for decryption.DAn attacker can decrypt data if the attacker captures the key used for encryption.
多选题What are three security problems with Wi-Fi Protected Access （WPA）？（）AWPA is based on the outdated IEEE 802.11i standard.BWPA uses RSN，which uses the same base encryption algorithm as RC4.CWPA requires a hardware upgrade that may not be supported by all vendors.DWPA uses TKIP，which uses the same base encryption algorithm as WEP.EWPA is susceptible to a DoS attack when it receives two packets in quick succession with bad MICs，forcing the AP to shut down the entire Basic Service Set （BSS） for one minute.FWPA is susceptible to a security weakness when preshared keys are used.