The crocodile attacked Ms Pethrick when she was _____.

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  A . Virus B . Worm C . Trojan D . Executable

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• A network administrator wants to detect a login attack against a router. What IOS command can make the attack recorded in syslog server？（）

  A . Logging detect fail-login B . Login on-failure log C . Login detect login-failure log D . Logging login on-failure E . none of the above

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• The attack on Pearl Harbor（）the indignation of the whole nation.

  A . raised B . rose C . aroused D . arose

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  A .  ARP spoofing attacks are attempts to redirect traffic to an attacking host by encapsulating a  false 802.1Q header on a frame and causing traffic to be delivered to the wrong VLAN. B .  ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP  message with a forged identity to a transmitting host. C .  MAC address flooding is an attempt to force a switch to send all information out every port byoverloading the MAC address table. D .  ARP spoofing attacks are attempts to redirect traffic to an attacking host by sending an ARP  packet that contains the forged address of the next hop router. E .  MAC address flooding is an attempt to redirect traffic to a single port by associating that port  with all MAC addresses in the VLAN.

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• A MAC address flood attack is occurring on the LAN. During this attack， numerous frames areforwarded to a switch which causes the CAM table to fill to capacity. How does this action benefitthe attacker？（）

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  A .  Attacks are prevented by utilizing the port-security feature. B .  An end station attempts to gain access to all VLANs by transmitting Ethernet frames in the  802.1q encapsulation. C .  Configuring an interface with the switchport mode dynamic command will prevent VLAN  hopping. D .  An end station attempts to redirect VLAN traffic by transmitting Ethernet frames in the 802.1q  encapsulation. E .  Configuring an interface with the "switchport mode access" command will prevent VLAN  hopping.

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• In a brute-force attack， what percentage of the keyspace must an attacker generally search through until heor she finds the key that decrypts the data？（）

  A . Roughly 50 percent B . Roughly 66 percent ActualTests.com C . Roughly 75 percent D . Roughly 10 percent

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• An attacker is launching a DoS attack on the Company network using a hacking tool designed to  exhaust the IP address space available from the DHCP servers for a period of time.  Which  procedure would best defend against this type of attack？ （）

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  A .  digital signatures B .  symmetric ciphering C .  hashalgoritms D .  asymmetric ciphering E .  digital certificate

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• Observe the following options carefully， which two attacks focus on RSA？ （）

  A . BPA attack B . Adaptive chosen ciphertext attack C . DDoS attack D . Man-in-the-middle attack

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• Which of the following IOS features can prevent IP spoofing attacks？（）

  A . PPP over Ethernet B . Cisco Express forwarding C . MPLS traffic Engineering D . IS-IS routing E . Unicast Reverse Path Forwarding（uRPF）

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• To avoid impingement attack, care must be taken with the water （） through the tubes of the heat exchangers.

  A . temperature B . velocity C . density D . viscosity

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• The army defended the town _____ the enemy attack.

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• Flu is an ___ that attacks the respiratory system.

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• Which of the following statement is true about the terrorist attack （）

  A．It is a deadly bombing in Germany last night and is considered by the government as a right-wing terrorist attack． B．Eleven people were found dead at two hookah bars outside Frankfurt． C．The suspect escaped after the attack and the police has not found him yet． D．According to media reports, the victims in the bars were from Germany’s Turkish and Kurdish communities．

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• The West African catch the crocodile because it is______.

  A．wild B．stupid C．gentle D．slow

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• Which one is INCORRECT about the result of the attack？

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• The spokesman said he believed the attack was in______for the death of the bombing.

  A．requital B．rhetoric C．retrospect D．retaliation

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• The soldier was______of running away when the enemy attacked.

  A．scolded B．charged C．accused D．punished

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• In the face of recent attacks on the company,Levin_____

  A．stuck to a strong stand to defend freedom of expression. B．softened his tone and introduced a new initiative. C．yielded to objections and resigned from the company. D．requested unconditional support from the 15-member board.

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• （) hearing the news of the air attack,most civilians headed for the border.

  A．At B．In C．On D．When

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• They had a __________ response to the attack of the enemy.

  A.plain B.swift C.relevant D.tedious

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• Jim_______the heart attack thanks to the prompt first aid treatment.

  A.generated B.survived C.retred D.located

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