CTS Quiz 1

Which of the following are emerging industry trends do NOT affect most Enterprise IT organizations today? -Cloud Computing -Self-driving cars -5G Cellular Standard -Software-Defined Infrastructure -DevOps -Quantum Computing -Foldable Mobile Devices

- Self Driving cars -5G Cellular Standard -Quantum Computing -Foldable Mobile Devices

Which of the following are emerging industry trends does affect most Enterprise IT organizations today? -Cloud Computing -Self-driving cars -5G Cellular Standard -Software-Defined Infrastructure -DevOps -Quantum Computing -Foldable Mobile Devices

-Cloud Computing -Software Defined Infrastructure -DevOps

Which of the following disciplines are NOT typically considered "IT Infrastructure Support"? -Data Analytics -Storage Engineering -Network Engineering -Server Engineering -Project Management -Application Development -Information Security

-Data Analytics -Project Management -Application Development -Information Security

Which of the following statements are true about programming & database concepts? -Within a running process, there is only one call stack regardless of how many threads exist -With modern database systems lock contention is no longer a concern -The isolation property of databases means that all data can be copied to another location immediately -Detailed applications log files are an example of instrumentation -Relational databases offer durability by committing all changes to a log prior to updating the database -Some of the primary services offered by database servers include security, access optimization, replication, and durability -Platforms like IIS & WebSphere cannot offer services like security, load balancing, and protocol abstraction

-Detailed applications log files are an example of instrumentation -Relational databases offer durability by committed all changes to a log prior to updating the database -Some of the primary services offered by database servers include security, access optimization, replication and durability

Which of the following statements are true about networking concepts? -Ethernet switches do not maintain a table of MAC addresses belonging to the ports on the switch -Low number ports are typically reserved for "well-known" server applications -With a VLAN, a broadcast domain (subnet) can span multiple Ethernet switches -Asymmetric encryption algorithms use the same key for encryption & decryption -A layer 3 firewall is basically a router with special software to drops packets based on definitions provided -A layer 4 conversation requires four unique values (Src IP/port, Dest IP/port)

-Low number ports are typically reserved for "well-known" server applications -With a VLAN, a broadcast domain (subnet) can span multiple Ethernet switches -A layer 3 firewall is basically a router with special software to drops packets based on definitions provided

Which of the following disciplines are typically considered "IT Infrastructure Support"? -Data Analytics -Storage Engineering -Network Engineering -Server Engineering -Project Management -Application Development -Information Security

-Storage Engineering -Network Engineering -Server Engineering

Which of the following statements are true about Operating System concepts? -Windows & Linux both work with hierarchical filesystems -Cloud storage options like Amazon's S3, Dropbox and Azure's OneDrive are examples of direct-attached block storage -The problems with virtualization are reducing its utilization within Enterprise IT organizations -Hardware decoupling & automatic failover are two of the primary advantages of virtualization -The "Process" is the primary logical unit of an operating system -Swapping should be completely avoided on an operating system as it causes work to slow down to almost nothing -Because processes act "as if" they have access to all of the computer's RAM, if a 32-bit process needs more RAM, you can simply add some to the computer

-Windows & Linux both work with hierarchical filesystems -Hardware decoupling & automatic failover are two of the primary advantages of virtualization -The "Process" is the primary logical unit of an operating system

IP to Mac Address matching for local network communications

ARP

UDP-based broadcast protocol that provides IP addresses to hosts (typically pc's, phones, IoT devices)

DHCP

UDP-based protocol used to turn names into IP addresses

DNS

Software providing generic functionality to ease the burden of common programming tasks

Framework

Ability to monitor or measure the level of an application's performance, to diagnose errors, and to write trace information

Instrumentation

Converts a private IP address to a public IP address and vice versa

NAT

Storage infrastructure consisting of a dedicated network (typically a fiber channel) and storage devices

SAN