On which layer of the OSI model do encryption and decryption occur? Question 1 options: a) Application b) Presentation c) Session d) Transport Question 2 (1 point) Saved What is the proper protocol data unit for data at the application layer? Question 2 options: a) Bits b) Segments c) User datagrams d) Frame Question 3 (1 point) Which of the following is a direct benefit of a full mesh topology? Question 3 options: a) Increased bandwidth b) Increased redundancy c) Decreased switch count d) Increased complexity Question 4 (1 point) Which is true of the IP address 135.20.255.255? Question 4 options: a) It is a Class A address. b) It is a broadcast address. c) It is the default gateway address. d) It has a default mask of 255.0.0.0. Question 5 (1 point) Which cabling standard was the first to support 10 Gbps data speeds? Question 5 options: a) Category 5 b) Category 5e c) Category 6 d) Category 7 Question 6 (1 point) Which protocol is built into Microsoft servers for remote access purposes? Question 6 options: a) SNMP b) LDAP c) Telnet d) RDP Question 7 (1 point) Why is IPv6 needed in the world today? Question 7 options: a) It does not require NAT to operate. b) The IPv4 address space is exhausted. c) IPv4 is considered legacy, and IPv6 is the replacement. d) IPv6 does not require subnetting. Question 8 (1 point) Which transport layer protocol provides assured delivery and retransmission of segments lost in transmission? Question 8 options: a) ICMP b) UDP c) IP d) TCP Question 9 (1 point) Hosting a disaster recovery (DR) site on Microsoft Azure is an example of which National Institute of Standards and Technology (NIST) type of cloud service? Question 9 options: a) IaaS b) DRaaS c) PaaS d) SaaS Question 10 (1 point) Which record type is used for an IPv4 address mapping to FQDN for DNS queries? Question 10 options: a) The A record b) The CName record c) The PTR record d) The AAAA record