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2021 Oct 350-018 braindump:
Q21. Which configuration implements an ingress traffic filter on a dual-stack ISR border router to prevent attacks from the outside to services such as DNSv6 and DHCPv6?
A. ! ipv6 access-list test deny ipv6 FF05::/16 any deny ipv6 any FF05::/16 ! output omitted permit ipv6 any any !
B. ! ipv6 access-list test permit ipv6 any FF05::/16 ! output omitted deny ipv6 any any !
C. ! ipv6 access-list test deny ipv6 any any eq dns deny ipv6 any any eq dhcp ! output omitted permit ipv6 any any !
D. ! ipv6 access-list test deny ipv6 any 2000::/3 ! output omitted permit ipv6 any any !
E. ! ipv6 access-list test deny ipv6 any FE80::/10 ! output omitted permit ipv6 any any !
Q22. Which option shows the correct sequence of the DHCP packets that are involved in IP address assignment between the DHCP client and the server?
A. REQUEST, OFFER, ACK
B. DISCOVER, OFFER, REQUEST, ACK
C. REQUEST, ASSIGN, ACK
D. DISCOVER, ASSIGN, ACK
E. REQUEST, DISCOVER, OFFER, ACK
Q23. Which port or ports are used for the FTP data channel in passive mode?
A. random TCP ports
B. TCP port 21 on the server side
C. TCP port 21 on the client side
D. TCP port 20 on the server side
E. TCP port 20 on the client side
Q24. When routing is configured on ASA, which statement is true?
A. If the default route is not present, then the routing table is checked.
B. If the routing table has two matching entries, the packet is dropped.
C. If routing table has two matching entries with same prefix length, the first entry is used.
D. If routing table has two matching entries with different prefix lengths, the entry with the longer prefix length is used.
Q25. When implementing WLAN security, what are three benefits of using the TKIP instead of WEP? (Choose three.)
A. TKIP uses an advanced encryption scheme based on AES.
B. TKIP provides authentication and integrity checking using CBC-MAC.
C. TKIP provides per-packet keying and a rekeying mechanism.
D. TKIP provides message integrity check.
E. TKIP reduces WEP vulnerabilities by using a different hardware encryption chipset.
F. TKIP uses a 48-bit initialization vector.
Improved 350-018 forum:
Q26. What entities decrypt a transmission sent by a GDOI group member?
A. all group members
B. the key server only
C. the peer that is indicated by the key server
D. the key server and the peer that is indicated by the key server
Q27. Refer to the exhibit.
On R1, encrypt counters are incrementing. On R2, packets are decrypted, but the encrypt counter is not being incremented. What is the most likely cause of this issue?
A. a routing problem on R1
B. a routing problem on R2
C. incomplete IPsec SA establishment
D. crypto engine failure on R2
E. IPsec rekeying is occurring
Q28. Which three statements are true regarding RFC 5176 (Change of Authorization)? (Choose three.)
A. It defines a mechanism to allow a RADIUS server to initiate a communication inbound.to a NAD.
B. It.defines a wide variety.of authorization actions,.including "reauthenticate."
C. It.defines the format for a Change of Authorization packet.
D. It.defines a.DM.
E. It specifies that TCP port 3799 be used for transport of Change of Authorization packets.
Q29. Aggregate global IPv6 addresses begin with which bit pattern in the first 16-bit group?
Q30. Which two are valid SMTP commands, according to RFC 821? (Choose two.)