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Showing 20 results for “networking”. More results are available below.
A+ · Networking
A+ expects the common port numbers cold. FTP uses 20 and 21, SSH and SFTP 22, Telnet 23, SMTP 25, DNS 53, DHCP 67 and 68, HTTP 80, POP3 110, NetBIOS 137 to 139, IMAP 143, SNMP 161 and 162, L…
A+ · Networking
An address starting 169.254 is APIPA, self-assigned when a client cannot reach a DHCP server; it can talk to other APIPA hosts on the same segment but not the internet, so the fix is to chec…
A+ · Networking
2.4 GHz penetrates walls best and reaches furthest but has only three non-overlapping channels (1, 6, 11) and shares the band with microwaves and Bluetooth, so it is slow and congested. 5 GH…
AI-102 · Azure AI application concepts
…ng extracts text and structured fields from documents; networking features do not interpret content.
AI-103 · Azure AI application concepts
…ng extracts text and structured fields from documents; networking features do not interpret content.
AI-200 · Azure AI application concepts
…ng extracts text and structured fields from documents; networking features do not interpret content.
AI-500 · Azure AI application concepts
…ng extracts text and structured fields from documents; networking features do not interpret content.
AI-900 · Azure AI application concepts
…ng extracts text and structured fields from documents; networking features do not interpret content.
AI-901 · Azure AI application concepts
…ng extracts text and structured fields from documents; networking features do not interpret content.
AWS-ANS · Advanced routing design
Large networks need explicit decisions about which routes to learn, advertise and prefer. Summarization reduces routing information but can hide detail, while redistribution joins routing do…
AWS-ANS · AWS network design
A VPC connection creates part of a network path, but resources also need suitable routes, address planning, security controls and name resolution. Trace traffic from the source subnet throug…
AWS-ANS · Network troubleshooting
Network troubleshooting narrows the boundary between success and failure. Compare affected and unaffected devices, then examine link state, addressing, routes, name resolution and the applic…
AWS-CLF · Security and Compliance
…ity of the cloud: the physical data centres, hardware, networking, and the software that runs managed services and the hypervisor. The customer is responsible for security in the cloud: thei…
AWS-CLF · Cloud Technology and Services
…crete data centres with independent power, cooling and networking, connected to the other zones in the Region by low-latency links; deploying across zones is how you get high availability. E…
AWS-SAA · Design Resilient Architectures
… or more data centers with separate power, cooling and networking, close enough for synchronous replication yet isolated enough that a flood or power failure should not take out two at once.…
AZ-104 · Implement and manage virtual networking
A network security group filters traffic to subnets or network interfaces with inbound and outbound rules processed in priority order from lowest number to highest; the first match wins and …
AZ-104 · Implement and manage virtual networking
In every subnet Azure keeps the first four addresses and the last: the network address, the default gateway at .1, two addresses for Azure DNS at .2 and .3, and the broadcast address at the …
AZ-104 · Implement and manage virtual networking
Virtual network peering connects two VNets over the Microsoft backbone with private addressing, in the same region or globally, and traffic flows as if on one network. It is not transitive: …
AZ-104 · Implement and manage virtual networking
Azure Load Balancer works at layer 4 distributing TCP and UDP within a region; Basic is free and limited, Standard is zone-redundant with an SLA and needs an NSG to allow traffic. Applicatio…
AZ-104 · Implement and manage virtual networking
Azure DNS hosts public zones and delegates from your registrar with NS records. Private DNS zones resolve names inside VNets with no internet exposure; link a zone to a VNet, and enable auto…
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