CompTIA Server+ SK0-004: Networking and Disaster Recovery, Exams of Nursing

Download CompTIA Server+ SK0-004: Networking and Disaster Recovery and more Exams Nursing in PDF only on Docsity! CompTIA Server+ SK0-004: Networking and Disaster Recovery What are the best practices for media storage and restore operations? - Correct Answer ✅Label backup media with Physical and electronic labels. Verify that the source data is the same as the destination data. Test whether you can restore data from the back-up media. Apply strategies for tape rotation and retention. What are some best practices for managing cables? - Correct Answer ✅Cables should be labelled to identify their purpose. To avoid damage, the cable bend radius should not be exceeded. Cables should be grouped with cable ties for better airflow. CompTIA Server+ SK0-004: Networking and Disaster Recovery what range do registered ports fall into? - Correct Answer ✅1,024 to 49,151 Which statements describe a default gateway? - Correct Answer ✅It is a type of network device it's used to send data off the network It can be viewed with the ipconfig utility Which statements describe the Media Access Control (MAC) address? - Correct Answer ✅It's a layer 2 address It is the first half of the manufacture ID It can be viewed using the ipconfig command It is represented as a 12-character hexadecimal address Which statements are true about public and private IP addressing? - Correct Answer ✅Public IP address is an IP address that is rout-able on the internet Any system that uses a private IP address cannot send its packets out to the internet CompTIA Server+ SK0-004: Networking and Disaster Recovery Asynchronous replication requires that a change is written to one location before it is sent to the other location. Synchronous replication requires that a change is written in both places before the change is considered successful. Data can be replicated to another disk, server, or site. what are the characteristics of the TCP and UDP network services? - Correct Answer ✅TCP operates at the transport layer of the TCP/IP protocol stack. UDP is a connectionless protocol. TCP requires an acknowledgment for every packet that is sent. TCP is a connection-oriented protocol. CompTIA Server+ SK0-004: Networking and Disaster Recovery UDP is faster than TCP. Which statements describes how network address translation (NAT) and port address translation (PAT) work? - Correct Answer ✅PAT maintains separate entries for each session by recording the source and destination ports of the sessions. NAT is used to translate private IP addresses to the public IP addresses. PAT is an extension to NAT that permits multiple devices on a network to be mapped to a single public IP address. NAT is a router-based service that allows a router to change the IP addresses of the packets that they send. Which statement is true about copper cables? - Correct Answer ✅CAT5 is used in a 100-megabit Ethernet or Fast Ethernet environments. CAT6 is used in 10-gigabit Ethernet environments. CompTIA Server+ SK0-004: Networking and Disaster Recovery A rollover cable is used to connect to the console port on a Cisco device. CAT5 is used in gigabit Ethernet networks. Match the types of backups to their descriptions. - Correct Answer ✅Bare metal backup - The operating system, its applications, and data are backed up. Differential backup - Files that have changed since the last backup are backed up, and the archive bit is not cleared. Copy backup - Then selected files are backed up, and the archive bit is not cleared. Snapshot backup - -A read-only copy of the data for a certain point in time is created. CompTIA Server+ SK0-004: Networking and Disaster Recovery TCP 23 - Telnet TCP 443 - HTTPS UDP 67 and 68 - DHCP TCP 80 HTTP UDP 161 - SNMP Which statements are true about cable management? - Correct Answer ✅Cables can be routed through cable channels. Cables should be managed in the office environment. Cables should be managed in the server room. Cables can be routed through cable management trays. What is the purpose of the Domain Name System (DNS). - Correct Answer ✅To translate fully qualified domain names to IP addresses. Match the IPv4 address classes to their characteristics. Each class is used more than once. - Correct Answer ✅Class A - it provides over 16 million addresses. CompTIA Server+ SK0-004: Networking and Disaster Recovery - The value of the first octet ranges from 1 to 127 Class B - It provides 65,536 addresses - the value of the first octet ranges from 128 to 191 Class C - It provides 254 addresses. - the value of the first octet ranges from 192 to 224 Match the addressing schemes to their characteristics. Each scheme is used more than once. - Correct Answer ✅IPv4 - 23-bit address - Made up of four parts separated by a decimal. - Supports broadcast communication. IPv6 - 128-bit addresses. - Supports uni-cast, multicast, and any-cast communication. - Made up of 8 parts in a hexadecimal notation. What do you need to take into consideration when choosing a location for backup media? - Correct Answer ✅Backup media should be encrypted to protect sensitive data. CompTIA Server+ SK0-004: Networking and Disaster Recovery You need to be able to control the environment's humidity and temperature. Media needs to be stored in a secure location with controlled access. Onsite storage risks, losing the backup media if a disaster occurs at a site. Offsite storage can be very expensive and inconvenient. Match the network cable connectors to their descriptions. - Correct Answer ✅Lucent Connector (LC) -It is a snap-in- place connector that's very compact and offers high-density connections Straight tip (ST) connector - It has a bayonet type of fitting and is typically found with single mode fiber-optic connections